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2. What are hives? A dermatologist explains

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   Diagnosing hives. To diagnose hives, your primary care provider or dermatologist will examine your skin and ask questions about your symptoms and any possible causes.

3. Hives - Wikipedia

   en.wikipedia.org/wiki/Hives

   Hives, or urticaria, is a form of skin rash with red, raised, itchy bumps. [1] They may also burn or sting. [2] Hives can appear anywhere on the surface of the skin. Whether the trigger is allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid leakage from superficial blood ...

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

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   Lupus is an autoimmune disease that causes a red scaly rash on the cheeks and nose, says Dr. Parikh. In particular, the rash is characterized as looking like a butterfly across the face, she explains.

5. 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 ...

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

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   Other symptoms to note: Drug rashes can be a side effect of or a reaction to a new medication; almost any medication can cause a drug rash, but antibiotics and NSAIDs are the most common culprits ...

7. Physical urticaria - Wikipedia

   en.wikipedia.org/wiki/Physical_urticaria

   Physical urticaria is a distinct subgroup of urticaria (hives) that are induced by an exogenous physical stimulus rather than occurring spontaneously. [1] There are seven subcategories that are recognized as independent diseases. [2] [3] Physical urticaria is known to be painful, itchy and physically unappealing; it can recur for months to ...