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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. How to spot 18 common — and not so common — bumps, rashes and ...

    www.aol.com/news/spot-18-common-not-common...

    Hives symptoms and signs. Hives appear on the skin as slightly swollen, raised pink or red patches. ... Different symptoms appear with different types of latex allergies. One type causes a rash on ...

  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. Allergy - Wikipedia

    en.wikipedia.org/wiki/Allergy

    Symptoms of food allergy include abdominal pain, bloating, vomiting, diarrhea, itchy skin, and hives. Food allergies rarely cause respiratory (asthmatic) reactions, or rhinitis . [ 25 ]

  7. Cold urticaria - Wikipedia

    en.wikipedia.org/wiki/Cold_urticaria

    Hives on the back from exposure to cold air on an individual with cold allergy. The hives were induced by riding a stationary bike shirtless for an hour next to a door cracked open on a cool day. The temperature of the air flowing in was around 10 °C (50 °F). The lighter band at chest height was covered by a heart rate monitor strap.

  8. 13 Home Remedies for Allergies That Really Work—and 3 ... - AOL

    www.aol.com/13-home-remedies-allergies-really...

    Getting on the right allergy medication can only get you so far when it comes to management of your symptoms, says Tiffany J. Owens, M.D., an allergist/immunologist at The Ohio State University ...

  9. Cholinergic urticaria - Wikipedia

    en.wikipedia.org/wiki/Cholinergic_urticaria

    Cholinergic urticaria may significantly impair quality of life, especially in relation to normal day to day activities. It is caused by an overreaction of the immune system to the release of histamine, mast cells, and other chemicals in response to the small nerve fibers throughout the body due to the increase in body temperature being allergic ...

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