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148 relations: Active ingredient, Acute (medicine), Afferent nerve fiber, Allergy, Allodynia, Antihistamine, Athlete's foot, Atopic dermatitis, Axon, Backscratcher, Balsam of Peru, Benzocaine, Bilirubin, Body louse, Brachioradial pruritus, Bradykinin, Brain tumor, Camphor, Capsaicin, Central nervous system, Chickenpox, Chloroquine, Cholestasis, Chronic condition, Contagious disease, Corticosteroid, Counterirritant, Crab louse, Cream (pharmaceutical), Crotamiton, Cutaneous larva migrans, Dandruff, Delusion, Delusional parasitosis, Dermatitis, Dermatology, Dermis, Diabetes mellitus, Diphenhydramine, Electrical injury, Electrophoresis, Epidermis, Excitotoxicity, Flare, Foreign body, Formication, Gestational pemphigoid, Group C nerve fiber, Hallucination, Head louse, ..., Hedonism, Heredity, Herpes simplex, Hidradenitis suppurativa, Histamine, Hives, Hodgkin's lymphoma, Hydrocortisone, Hyperalgesia, Hyperparathyroidism, Inflammation, Ingrown hair, Injury, Insect bites and stings, Intrahepatic cholestasis of pregnancy, Iron-deficiency anemia, Jaundice, Kidney failure, Light therapy, Local anesthetic, Lymphoma, Malaria, Malignancy, Mast cell, Melanocytic nevus, Menopause, Mentha, Menthol, Mirror neuron, Moisturizer, Mosquito, Mouth, Mucuna pruriens, Multiple sclerosis, Muscle, Myelin, Nerve, Nerve injury, Nervous system, Neuron, Neurosis, Nociceptor, Obsessive–compulsive disorder, Opioid, Over-the-counter drug, Pain, Palmoplantar keratoderma, Parasitic disease, Patch test, Peripheral nervous system, Peripheral neuropathy, Photodermatitis, Pimple, Poison, Poison oak, Polycythemia, Prescription drug, Prostaglandin, Pruritic urticarial papules and plaques of pregnancy, Pruritus ani, Psoriasis, Psychiatry, Psychogenic disease, Psychogenic pain, Referred itch, Reflex, Samuel Hafenreffer, Saponin, Scabies, Scar, Scratch reflex, Sensory nervous system, Serotonin, Sex organ, Skin, Spinal cord, Spinothalamic tract, Spray (liquid drop), Stimulus (physiology), Stratum basale, Subcutaneous tissue, Substance P, Sunburn, Sunlight, Swimmer's itch, Thyroid, Topical medication, Topical steroid, Toxicodendron radicans, Trombiculidae, Ultraviolet, Uremia, Uremic pruritus, Urushiol, Withdrawal reflex, Wound healing, Xeroderma, Yawn. Expand index (98 more) »
Active ingredient
An active ingredient (AI) is the ingredient in a pharmaceutical drug that is biologically active.
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Acute (medicine)
In medicine, describing a disease as acute denotes that it is of short duration and, as a corollary of that, of recent onset.
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Afferent nerve fiber
Afferent nerve fibers refer to axonal projections that arrive at a particular region; as opposed to efferent projections that exit the region.
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Allergy
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment.
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Allodynia
Allodynia (Ancient Greek άλλος állos "other" and οδύνη odúnē "pain") refers to central pain sensitization (increased response of neurons) following normally non-painful, often repetitive, stimulation.
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Antihistamine
Antihistamines are drugs which treat allergic rhinitis and other allergies.
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Athlete's foot
Athlete's foot, known medically as tinea pedis, is a common skin infection of the feet caused by fungus.
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Atopic dermatitis
Atopic dermatitis (AD), also known as atopic eczema, is a type of inflammation of the skin (dermatitis).
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Axon
An axon (from Greek ἄξων áxōn, axis) or nerve fiber, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses known as action potentials, away from the nerve cell body.
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Backscratcher
A backscratcher (occasionally known as a scratch-back) is a tool used, as the name would suggest, for relieving areas that cannot easily be reached just by one's own hands, typically the back.
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Balsam of Peru
Balsam of Peru, also known and marketed by many other names, is a balsam derived from a tree known as Myroxylon balsamum var.
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Benzocaine
Benzocaine, sold under the brand name Orajel among others, is an ester local anesthetic commonly used as a topical pain reliever or in cough drops.
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Bilirubin
Bilirubin is a yellow compound that occurs in the normal catabolic pathway that breaks down heme in vertebrates.
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Body louse
The body louse (Pediculus humanus humanus, sometimes called Pediculus humanus corporis) is a louse that infests humans.
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Brachioradial pruritus
Brachioradial pruritus (sometimes abbreviated BRP) is an intense itching sensation of the arm usually between the wrist and elbow of either or both arms.
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Bradykinin
Bradykinin is an inflammatory mediator.
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Brain tumor
A brain tumor occurs when abnormal cells form within the brain.
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Camphor
Camphor is a waxy, flammable, white or transparent solid with a strong aroma.
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Capsaicin
Capsaicin ((INN); 8-methyl-N-vanillyl-6-nonenamide) is an active component of chili peppers, which are plants belonging to the genus Capsicum.
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Central nervous system
The central nervous system (CNS) is the part of the nervous system consisting of the brain and spinal cord.
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Chickenpox
Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV).
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Chloroquine
Chloroquine is a medication used to prevent and to treat malaria in areas where malaria is known to be sensitive to its effects.
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Cholestasis
Cholestasis is a condition where bile cannot flow from the liver to the duodenum.
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Chronic condition
A chronic condition is a human health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time.
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Contagious disease
A contagious disease is a subset category of transmissible diseases, which are transmitted to other persons, either by physical contact with the person suffering the disease, or by casual contact with their secretions or objects touched by them or airborne route among other routes.
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Corticosteroid
Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones.
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Counterirritant
A counterirritant is a substance which creates irritation or mild inflammation in one location with the goal of lessening discomfort and/or inflammation in another location.
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Crab louse
The crab louse or pubic louse (Pthirus pubis) is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood.
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Cream (pharmaceutical)
A cream is a preparation usually for application to the skin.
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Crotamiton
Crotamiton is a drug that is used both as a scabicidal (for treating scabies) and as a general antipruritic (anti-itching drug).
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Cutaneous larva migrans
Cutaneous larva migrans (abbreviated CLM) is a skin disease in humans, caused by the larvae of various nematode parasites of the hookworm family (Ancylostomatidae).
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Dandruff
Dandruff is a skin condition that mainly affects the scalp.
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Delusion
A delusion is a mistaken belief that is held with strong conviction even in the presence of superior evidence to the contrary.
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Delusional parasitosis
Delusional parasitosis, also known as delusional infestation or Ekbom's syndrome, is a delusional disorder in which individuals incorrectly believe they are infested with parasites, insects, or bugs, whereas in reality no such infestation is present.
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Dermatitis
Dermatitis, also known as eczema, is a group of diseases that results in inflammation of the skin.
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Dermatology
Dermatology (from ancient Greek δέρμα, derma which means skin and λογία, logia) is the branch of medicine dealing with the skin, nails, hair and its diseases.
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Dermis
The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain.
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Diabetes mellitus
Diabetes mellitus (DM), commonly referred to as diabetes, is a group of metabolic disorders in which there are high blood sugar levels over a prolonged period.
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Diphenhydramine
Diphenhydramine is an antihistamine mainly used to treat allergies.
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Electrical injury
Electrical injury is a physiological reaction caused by electric current passing through the (human) body.
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Electrophoresis
Electrophoresis (from the Greek "Ηλεκτροφόρηση" meaning "to bear electrons") is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field.
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Epidermis
The epidermis is the outer layer of the three layers that make up the skin, the inner layers being the dermis and hypodermis.
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Excitotoxicity
Excitotoxicity is the pathological process by which nerve cells are damaged or killed by excessive stimulation by neurotransmitters such as glutamate and similar substances.
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Flare
A flare, also sometimes called a fusee, is a type of pyrotechnic that produces a brilliant light or intense heat without an explosion.
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Foreign body
In the field of medicine, a foreign body, sometimes known as FB (Latin: corpus alienum), is any object originating outside the body of an organism.
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Formication
In medicine, formication is the sensation that resembles that of small insects crawling on (or under) the skin.
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Gestational pemphigoid
Gestational pemphigoid or pemphigoid gestationis (PG) is a dermatosis of pregnancy, being an autoimmune blistering skin disease that occurs during pregnancy, typically in the second or third trimester, and/or immediately following pregnancy.
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Group C nerve fiber
Group C nerve fibers are one of three classes of nerve fiber in the central nervous system and peripheral nervous system.
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Hallucination
A hallucination is a perception in the absence of external stimulus that has qualities of real perception.
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Head louse
The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis).
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Hedonism
Hedonism is a school of thought that argues that the pursuit of pleasure and intrinsic goods are the primary or most important goals of human life.
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Heredity
Heredity is the passing on of traits from parents to their offspring, either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
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Herpes simplex
Herpes simplex is a viral disease caused by the herpes simplex virus.
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Hidradenitis suppurativa
Hidradenitis suppurativa (HS), also known as acne inversa, is a long term skin disease characterized by the occurrence of inflamed and swollen lumps.
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Histamine
Histamine is an organic nitrogenous compound involved in local immune responses, as well as regulating physiological function in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus.
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Hives
Hives, also known as urticaria, is a kind of skin rash with red, raised, itchy bumps.
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Hodgkin's lymphoma
Hodgkin's lymphoma (HL) is a type of lymphoma which is generally believed to result from white blood cells of the lymphocyte kind.
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Hydrocortisone
Hydrocortisone, sold under a number of brand names, is the name for the hormone cortisol when supplied as a medication.
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Hyperalgesia
Hyperalgesia (or; 'hyper' from Greek ὑπέρ (huper, “over”), '-algesia' from Greek algos, ἄλγος (pain)) is an increased sensitivity to pain, which may be caused by damage to nociceptors or peripheral nerves and can cause hypersensitivity to stimulus, stimuli which would normally not be cause for a pain reaction (ex/ eyes or brain having a painful reaction to daylight).
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Hyperparathyroidism
Hyperparathyroidism is an increased parathyroid hormone (PTH) levels in the blood.
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Inflammation
Inflammation (from inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molecular mediators.
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Ingrown hair
Ingrown hair is a condition where hair curls back or grows sideways into the skin.
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Injury
Injury, also known as physical trauma, is damage to the body caused by external force.
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Insect bites and stings
Insect bites and stings occur when an insect is agitated and seeks to defend itself through its natural defense mechanisms, or when an insect seeks to feed off the bitten person.
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Intrahepatic cholestasis of pregnancy
Intrahepatic cholestasis of pregnancy (ICP), also known as obstetric cholestasis, cholestasis of pregnancy, jaundice of pregnancy, and prurigo gravidarum, is a medical condition in which cholestasis occurs during pregnancy.
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Iron-deficiency anemia
Iron-deficiency anemia is anemia caused by a lack of iron.
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Jaundice
Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and whites of the eyes due to high bilirubin levels.
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Kidney failure
Kidney failure, also known as end-stage kidney disease, is a medical condition in which the kidneys no longer work.
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Light therapy
Light therapy—or phototherapy, classically referred to as heliotherapy—consists of exposure to daylight or to specific wavelengths of light using polychromatic polarised light, lasers, light-emitting diodes, fluorescent lamps, dichroic lamps or very bright, full-spectrum light.
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Local anesthetic
A local anesthetic (LA) is a medication that causes reversible absence of pain sensation, although other senses are often affected, as well.
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Lymphoma
Lymphoma is a group of blood cancers that develop from lymphocytes (a type of white blood cell).
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Malaria
Malaria is a mosquito-borne infectious disease affecting humans and other animals caused by parasitic protozoans (a group of single-celled microorganisms) belonging to the Plasmodium type.
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Malignancy
Malignancy is the tendency of a medical condition to become progressively worse.
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Mast cell
A mast cell (also known as a mastocyte or a labrocyte) is a type of white blood cell.
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Melanocytic nevus
A melanocytic nevus (also known as nevocytic nevus, nevus-cell nevus and commonly as a mole) is a type of melanocytic tumor that contains nevus cells.
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Menopause
Menopause, also known as the climacteric, is the time in most women's lives when menstrual periods stop permanently, and they are no longer able to bear children.
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Mentha
Mentha (also known as mint, from Greek, Linear B mi-ta) is a genus of plants in the family Lamiaceae (mint family).
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Menthol
Menthol is an organic compound made synthetically or obtained from corn mint, peppermint, or other mint oils.
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Mirror neuron
A mirror neuron is a neuron that fires both when an animal acts and when the animal observes the same action performed by another.
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Moisturizer
Moisturizers or emollients are complex mixtures of chemical agents (often occlusives help hold water in the skin after application, humectants attract moisture and emollients help smooth the skin.) specially designed to make the external layers of the skin (epidermis) softer and more pliable.
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Mosquito
Mosquitoes are small, midge-like flies that constitute the family Culicidae.
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Mouth
In animal anatomy, the mouth, also known as the oral cavity, buccal cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds.
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Mucuna pruriens
Mucuna pruriens is a tropical legume native to Africa and tropical Asia and widely naturalized and cultivated.
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Multiple sclerosis
Multiple sclerosis (MS) is a demyelinating disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged.
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Muscle
Muscle is a soft tissue found in most animals.
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Myelin
Myelin is a lipid-rich substance that surrounds the axon of some nerve cells, forming an electrically insulating layer.
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Nerve
A nerve is an enclosed, cable-like bundle of axons (nerve fibers, the long and slender projections of neurons) in the peripheral nervous system.
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Nerve injury
Nerve injury is injury to nervous tissue.
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Nervous system
The nervous system is the part of an animal that coordinates its actions by transmitting signals to and from different parts of its body.
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Neuron
A neuron, also known as a neurone (British spelling) and nerve cell, is an electrically excitable cell that receives, processes, and transmits information through electrical and chemical signals.
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Neurosis
Neurosis is a class of functional mental disorders involving chronic distress but neither delusions nor hallucinations.
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Nociceptor
A nociceptor is a sensory neuron that responds to damaging or potentially damaging stimuli by sending “possible threat” signals to the spinal cord and the brain.
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Obsessive–compulsive disorder
Obsessive–compulsive disorder (OCD) is a mental disorder where people feel the need to check things repeatedly, perform certain routines repeatedly (called "rituals"), or have certain thoughts repeatedly (called "obsessions").
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Opioid
Opioids are substances that act on opioid receptors to produce morphine-like effects.
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Over-the-counter drug
Over-the-counter (OTC) drugs are medicines sold directly to a consumer without a prescription from a healthcare professional, as opposed to prescription drugs, which may be sold only to consumers possessing a valid prescription.
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Pain
Pain is a distressing feeling often caused by intense or damaging stimuli.
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Palmoplantar keratoderma
Palmoplantar keratodermas are a heterogeneous group of disorders characterized by abnormal thickening of the palms and soles.
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Parasitic disease
A parasitic disease, also known as parasitosis, is an infectious disease caused or transmitted by a parasite.
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Patch test
A patch test is a method used to determine whether a specific substance causes allergic inflammation of a patient's skin.
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Peripheral nervous system
The peripheral nervous system (PNS) is one of the two components of the nervous system, the other part is the central nervous system (CNS).
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Peripheral neuropathy
Peripheral neuropathy (PN) is damage to or disease affecting nerves, which may impair sensation, movement, gland or organ function, or other aspects of health, depending on the type of nerve affected.
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Photodermatitis
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure.
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Pimple
A pimple, zit or spot is a kind of comedo and one of the many results of excess oil getting trapped in the pores.
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Poison
In biology, poisons are substances that cause disturbances in organisms, usually by chemical reaction or other activity on the molecular scale, when an organism absorbs a sufficient quantity.
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Poison oak
Poison oak refers to two plant species in the genus Toxicodendron.
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Polycythemia
Polycythemia (also known as polycythaemia or polyglobulia) is a disease state in which the hematocrit (the volume percentage of red blood cells in the blood) is elevated.
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Prescription drug
A prescription drug (also prescription medication or prescription medicine) is a pharmaceutical drug that legally requires a medical prescription to be dispensed.
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Prostaglandin
The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals.
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Pruritic urticarial papules and plaques of pregnancy
Pruritic urticarial papules and plaques of pregnancy (PUPPP), known in United Kingdom as polymorphic eruption of pregnancy (PEP), is a chronic hives-like rash that strikes some women during pregnancy.
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Pruritus ani
Pruritus ani is the irritation of the skin at the exit of the rectum, known as the anus, causing the desire to scratch.
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Psoriasis
Psoriasis is a long-lasting autoimmune disease characterized by patches of abnormal skin.
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Psychiatry
Psychiatry is the medical specialty devoted to the diagnosis, prevention and treatment of mental disorders.
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Psychogenic disease
Psychogenic disease (or psychogenic illness) is a name given to physical illnesses that are believed to arise from emotional or mental stressors, or from psychological or psychiatric disorders.
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Psychogenic pain
Psychogenic pain, also called psychalgia, is physical pain that is caused, increased, or prolonged by mental, emotional, or behavioral factors.
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Referred itch
Referred itch is the phenomenon in which a stimulus applied in one region of the body is felt as an itch or irritation in a different part of the body.
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Reflex
A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus.
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Samuel Hafenreffer
Samuel Hafenreffer (April 26, 1587 – September 26, 1660) was a German physician, who in 1660 introduced the definition of pruritus.
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Saponin
Saponins are a class of chemical compounds found in particular abundance in various plant species.
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Scabies
Scabies, also known as the seven-year itch, is a contagious skin infestation by the mite Sarcoptes scabiei.
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Scar
A scar is an area of fibrous tissue that replaces normal skin after an injury.
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Scratch reflex
The scratch reflex is a response to activation of sensory neurons whose peripheral terminals are located on the surface of the body.
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Sensory nervous system
The sensory nervous system is a part of the nervous system responsible for processing sensory information.
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Serotonin
Serotonin or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.
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Sex organ
A sex organ (or reproductive organ) is any part of an animal's body that is involved in sexual reproduction.
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Skin
Skin is the soft outer tissue covering vertebrates.
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Spinal cord
The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.
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Spinothalamic tract
The spinothalamic tract (also known as anterolateral system or the ventrolateral system) is a sensory pathway from the skin to the thalamus.
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Spray (liquid drop)
A spray is a dynamic collection of drops dispersed in a gas.
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Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment.
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Stratum basale
The stratum basale (basal layer, sometimes referred to as stratum germinativum) is the deepest layer of the five layers of the epidermis, the outer covering of skin in mammals.
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Subcutaneous tissue
The subcutaneous tissue, also called the hypodermis, hypoderm, subcutis, or superficial fascia, is the lowermost layer of the integumentary system in vertebrates.
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Substance P
Substance P (SP) is an undecapeptide (a peptide composed of a chain of 11 amino acid residues) member of the tachykinin neuropeptide family. It is a neuropeptide, acting as a neurotransmitter and as a neuromodulator. Substance P and its closely related neurokinin A (NKA) are produced from a polyprotein precursor after differential splicing of the preprotachykinin A gene. The deduced amino acid sequence of substance P is as follows.
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Sunburn
Sunburn is a form of radiation burn that affects living tissue, such as skin, that results from an overexposure to ultraviolet (UV) radiation, commonly from the sun.
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Sunlight
Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light.
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Swimmer's itch
Swimmer’s itch or cercarial dermatitis, is a short-term immune reaction occurring in the skin of humans that have been infected by water-borne schistosomatidae.
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Thyroid
The thyroid gland, or simply the thyroid, is an endocrine gland in the neck, consisting of two lobes connected by an isthmus.
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Topical medication
A topical medication is a medication that is applied to a particular place on or in the body.
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Topical steroid
Topical steroids are the topical forms of corticosteroids.
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Toxicodendron radicans
Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a poisonous Asian and Eastern North American flowering plant that is well-known for causing urushiol-induced contact dermatitis, an itchy, irritating, and sometimes painful rash, in most people who touch it.
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Trombiculidae
Trombiculidae (also called berry bugs, harvest mites, red bugs, scrub-itch mites and aoutas) are a family of mites.
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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Uremia
Uremia is the condition of having "urea in the blood".
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Uremic pruritus
Uremic pruritus (also known as uraemic pruritus or renal pruritus) is caused by chronic kidney failure and is the most common internal systemic cause of itching.
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Urushiol
Urushiol is an oily mixture of organic compounds with allergic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Lacquer Tree, poison ivy, poison sumac) and also in parts of the mango tree.
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Withdrawal reflex
The withdrawal reflex (nociceptive flexion reflex or flexor withdrawal reflex) is a spinal reflex intended to protect the body from damaging stimuli.
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Wound healing
Wound healing is an intricate process in which the skin repairs itself after injury.
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Xeroderma
Xeroderma or xerodermia (also known as xerosis cutis), derived from the Greek words for "dry skin", is a condition involving the integumentary system, which in most cases can safely be treated with emollients or moisturizers.
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Yawn
A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, followed by an exhalation of breath. Yawning (oscitation) most often occurs in adults immediately before and after sleep, during tedious activities and as a result of its contagious quality. It is commonly associated with tiredness, stress, sleepiness, or even boredom and hunger. In humans, yawning is often triggered by others yawning (e.g. seeing a person yawning, talking to someone on the phone who is yawning) and is a typical example of positive feedback. This "contagious" yawning has also been observed in chimpanzees, dogs, cats, birds, and reptiles, and can occur across species. Approximately 20 psychological reasons for yawning have been proposed by scholars, but there is little agreement on the primacy of any one. During a yawn, the tensor tympani muscle in the middle ear contracts, creating a rumbling noise from within the head. Yawning is sometimes accompanied, both in humans and animals, by an instinctive act of stretching several parts of the body, including arms, neck, shoulders and back.
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Redirects here:
Anogenital pruritus, Generalised pruritus of unknown aetiology, Itch cycle, Itches, Itchiness, Itching, Methylamphetamine-induced pruritus, Pruritic, Pruritis, Pruritus, Puritis, Skin itch, Yeuk.
References
[1] https://en.wikipedia.org/wiki/Itch
