itch

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itch

any skin disorder, such as scabies, characterized by intense itching

Itch

 

a distressing sensation caused by constant weak irritation of the cutaneous nerve endings that are pain receptors and accompanied by the need to scratch the skin.

Itching may be stimulated by a number of metabolic products—for example, bile acids in jaundice. There is localized and universal (generalized) itching. Localized itching is found in certain inflammatory diseases of the skin. Causes of universal itching may be diseases of the skin proper, diseases of various internal organs (jaundice, diabetes mellitus); certain allergic states, and decrease in function of the sex glands. The very notion of a habitual source of itching familiar through past experience (for example, an insect bite) may produce the corresponding sensation of itching (conditioned-reflex itching). Itching may be chronic or come in attacks lasting from a few hours to many weeks. Scratching leads to disruption of the integrity of surface layers of the skin and to infection of itching areas, which may cause a secondary inflammatory disease of the skin.

Treatment of an itch consists in eliminating the disease that is causing it. Sedatives (bromine, valerian, calcium preparations) are prescribed and menthol and sea baths are applied externally. Hormone preparations are used for climacteric and geriatric itching. Localized itching can be prevented by the observance of personal hygiene.

V. S. ROTENBERG

itch

[ich]
(physiology)
An irritating cutaneous sensation allied to pain.
References in periodicals archive ?
It's believed that eczema's itchiness is caused by the body releasing histamines to a perceived irritant on the skin's surface.
Itchiness, nits or empty egg cases are an indication but only the presence of a moving louse is proof positive and only then should the two-stage treatment be started.
These are parasites which burrow into a rabbit's skin causing itchiness and discomfort.
Medicated lotions may lessen itchiness and speed up the disappearance of the rash.
An allergy to substances like concrete dust can cause itchiness, so think carefully about whether this could be a possible cause.
Using a goat milk product such as Alabu can help relieve irritations such as blemishes, itchiness, and redness associated with these conditions while gently cleansing the skin at the same time.
Tham, 30, from Pahang, said the procedure had left her with severe infections and itchiness on her breasts.
This yeast infection causes soreness, itchiness and a thick discharge.
Bella Mama is the maternity cream-care line designed to soothe and satisfy skin as well as help protect it against stretch marks, swelling, dryness, itchiness and bodily irritations experienced during pregnancy.
Closer to home, it may be no surprise that there is a Gaelic word for itchiness that overcomes the upper lip just before taking whisky - sgriob.
Tail itchiness, due to fleas or an allergy called fleabite hypersensitivity.
ALONG-TERM oral treatment with a veterinary evening primrose oil supplement will improve her coat and reduce itchiness.