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2. 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 ...

3. What are hives? A dermatologist explains

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

   Tracking your symptoms and possible triggers could help identify what’s causing your hives. Your provider or dermatologist may also recommend allergy tests, blood work or a skin biopsy ...

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

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

   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 ...

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. Chronic spontaneous urticaria - Wikipedia

   en.wikipedia.org/wiki/Chronic_spontaneous_urticaria

   The most common symptoms of chronic spontaneous urticaria are angioedema and hives that are accompanied by itchiness. Chronic spontaneous urticaria, despite its cause being unknown, is linked to a higher prevalence of autoimmune diseases , and is often worsened by triggers like stress, infections, certain foods, or nonsteroidal anti ...

7. Cholinergic urticaria - Wikipedia

   en.wikipedia.org/wiki/Cholinergic_urticaria

   Cholinergic urticaria typically presents with a number of small papular hives all over the body, that involve cutaneous inflammation (wheals) and severe nerve pain, which usually develops in response to exercise, bathing, staying in a heated environment, spicy foods, or emotional stress.