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Find out about hives (also called urticaria), which is a raised, itchy rash that's usually caused by a reaction to things like food, pollen, insect bites or chemicals.
Hives, or urticaria, is a form of skin rash with red, raised, itchy bumps. They may also burn or sting. 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 vessels ...
Jun 20, 2024 · Hives (or urticaria) is an itchy rash caused by tiny amounts of fluid that leak from blood vessels just under the skin surface. A trigger causes cells in the skin to release chemicals such as histamine.
Jul 18, 2023 · Hives, or urticaria, are itchy, raised welts that are found on the skin. Hives are often caused by an allergic reaction. Learn the signs and how to identify them.
Hives. The main symptom of hives (urticaria) is a rash. The rash may: be raised. be very itchy. be on one part of the body. spread over large areas. range is size from a few millimetres to the size of a hand. change in appearance within 24 hours. The image shows a hives rash on the side of the stomach.
Oct 14, 2022 · Hives, a skin rash that’s often very itchy, often results from an allergic reaction to food or something you’ve touched. Hives can go away quickly (acute hives) or last a long time (chronic hives). Treatments may include antihistamines or steroids.
Mar 14, 2024 · Hives are itchy welts that form on the skin, often as a result of a viral infection or stress. Most cases of hives resolve within 48 hours, but some people can experience chronic hives, which last more than six weeks. Manage hives with at-home remedies like cold compresses, calamine lotion, and OTC antihistamines.
Apr 13, 2023 · Hives (urticaria) are a rash on your body. Identifying what triggered your hives is crucial to preventing them from happening again. If you can identify the trigger, you can avoid contact with...
Mar 16, 2024 · Hives are itchy welts that can appear anywhere on your skin and sometimes last minutes or days. They may be a sign of serious issues, especially if you have trouble breathing.
Oct 27, 2023 · Hives — also known as urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts that range in size from small spots to large blotches. Hives can be triggered by many situations and substances, including certain foods and medications. Angioedema can arise with hives or alone.
