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Acute episodes of urticaria last for six weeks or less. Acute urticaria can be due to infections foods, medications, insect stings, blood transfusions and ... Dec 4, 2023 ... Another common form of physically induced hives is called cholinergic urticaria. This produces hundreds of small, itchy bumps. These occur ... Hives are red, itchy, swollen areas of the skin. They can vary in size from as small as a pencil eraser to as large as a dinner plate. 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. Hives (urticaria) are a symptom, and in themselves are ... Dec 18, 2024 ... Hives are raised, itchy welts that appear on the skin. Often red or skin-colored, they can range in size from small spots to large patches. Hives are a rash that emerges as red, raised itchy bumps on the skin. The most commonly known cause of hives is an allergic reaction. The best treatment for hives is to identify the allergic component and eliminate it from the patient's lifestyle. In the case of medications, however, this may ... Hives, also known as urticaria, are a common skin condition characterized by the sudden appearance of raised, itchy welts on the skin. Mar 11, 2025 ... Hives are the body's response to a stressor. While the stressor is most commonly an allergic trigger, people can break out in hives due to ...