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Dermatographic urticaria is sometimes called "skin writing", as it is possible to mark deliberate patterns onto the skin. The condition manifests as an allergic-like reaction, causing a warm red wheal to appear on the skin. As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic ...
This is a skin disorder characterized by a self-perpetuating scratch-itch cycle: [4] It may begin with something that rubs, irritates, or scratches the skin, such as clothing. This causes the person to rub or scratch the affected area. Constant scratching causes the skin to thicken.
For example chronic kidney disease (generalized or localized pruritus), hepatobiliary diseases (generalized pruritus), thyroid disorders (urticaria), polycythemia vera (generalized pruritus), iron deficiency anemia (skin lesions/scratching) and hodgkin’s lymphoma (the area where lymph nodes are affected) can all lead to clinical ...
The word is from Latin: scabere, lit. 'to scratch'. [11] The most common symptoms are severe itchiness and a pimple-like rash. [2] Occasionally, tiny burrows may appear on the skin. [2] In a first-ever infection, the infected person usually develops symptoms within two to six weeks. [2] During a second infection, symptoms may begin within 24 ...
Itch is readily abolished in skin areas treated with nociceptor excitotoxin capsaicin but remains unchanged in skin areas rendered touch insensitive by pretreatment with anti-inflammatory saponins. Although experimentally induced itch can still be perceived under a complete A-fiber conduction block , it is significantly diminished.
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Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.
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