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The itchy rash can develop within minutes to hours after exposure to the allergen and can cause swelling, tenderness, or a burning sensation. gokhanilgaz - Getty Images Eczema
If a heat rash becomes inflamed, the bumps may be painful, itchy or have a stinging or prickly feeling. They may also become filled with pus, depending on how deep within the skin the sweat is ...
Ringworm. What it looks like: Ringworm is a common skin infection caused by a fungus. It gets its name from its circular rash, which is often red, swollen, and cracked. Other symptoms to note ...
Formication is the sensation resembling that of small insects crawling on (or under) the skin, in the absence of actual insects. It is one specific form of a set of sensations known as paresthesias, which also include the more common prickling, tingling sensation known as pins and needles. Formication is a well-documented symptom which has ...
The exact mechanism of the condition is unknown. Some studies have suggested the itching occurs in response to increased fibrinolytic activity in the skin, [5] [6] inappropriate activation of the sympathetic nervous system, [7] increased activity of acetylcholinesterase, [8] [9] or an increase in mast cell degranulation that releases histamine and other chemicals into the body.
Further episodes of the irritable rash occur several hours to days following subsequent sun exposure. [11] PLE appears on areas of the skin newly exposed to sunlight such as the visible part of the neckline, backs of hands, arms and legs, and feet, but less commonly the face. [2] [6] At these areas, there may be feelings of burning [9] and ...
Eczema symptoms can be mild — a small patch of itchy, dry, red or pink textured skin — or they can be severe, Dr. Shasa Hu, associate professor in the department of dermatology and cutaneous ...
Various drugs can also induce pruritus which can manifest with or without a skin rash and can happen immediately or even months after the drug has been used by the patient. Neurological disorders such as postherpetic neuralgia, brachioradial pruritus and notalgia paraesthetica can also lead to senile pruritus with burning, stinging, scratching ...
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