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2. Solar urticaria - Wikipedia

   en.wikipedia.org/wiki/Solar_urticaria

   Solar urticaria is an immunoglobulin E-mediated hypersensitivity that can be introduced through primary or secondary factors, or induced by exogenous photosensitization. [15] [16] Primary SU is believed to be a type I hypersensitivity (a mild to severe reaction to an antigen including anaphylaxis) in which an antigen, or substance provoking an immune response, is "induced by UV or visible ...

3. Should you see a doctor for that skin rash? Experts share ...

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   A hives rash, also called urticaria, typically appears as raised, inflamed, itchy welts on the skin. They can each be separate, appear in clusters or merge into a larger swollen bump.

4. These Pictures Will Help You Identify the Most Common Skin Rashes

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   A rash is essentially inflammation in the skin that can be caused by either an external exposure or an internal factor,” says Joshua Zeichner, M.D., director of cosmetic and clinical research in ...

5. Hives - Wikipedia

   en.wikipedia.org/wiki/Hives

   Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [ 2 ] The patches of rash may appear on different body parts, [ 2 ] with variable duration from minutes to days, and do not leave any long-lasting skin change. [ 2 ]

6. Dermatographic urticaria - Wikipedia

   en.wikipedia.org/wiki/Dermatographic_urticaria

   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 ...

7. These Pictures Will Help You Figure Out What That Weird Rash ...

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   Cellulitis. Cellulitis looks like a rash, but is actually an infection of the middle layer of skin, says Dr. Yadav. It causes the skin to become diffusely red, swollen, tender, and hot to the ...