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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. What are hives? A dermatologist explains

   www.aol.com/news/hives-dermatologist-explains...

   Hives, or urticaria, are itchy pink welts that could appear anywhere on your skin. Some are bumps as small as a pinhead, while others may merge together to cover large patches of your skin.

4. These Pictures Will Help You Identify the Most Common ... - AOL

   www.aol.com/pictures-help-identify-most-common...

   Treatment: Generally, there is no treatment necessary, as the rash will go away on its own. However, its symptoms can be managed with over-the-counter medication like acetaminophen, per Mount Sinai .

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

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   Hives can present as an allergic reaction to something, like pollen or certain foods, so you may have other allergy-related symptoms along with the hives. Keratosis pilaris Bumpy "chicken skin" is ...

6. 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 ]

7. Dermatographic urticaria - Wikipedia

   en.wikipedia.org/wiki/Dermatographic_urticaria

   Symptoms are thought to be the result of histamine being released by mast cells on the surface of the skin. Despite the lack of antigens , histamine causes the skin to swell in affected areas. If the membrane that surrounds the mast cells is too weak, it will easily and rapidly break down under physical pressure, which then causes an allergic ...