Hives, also known as urticaria, are raised, itchy welts on the skin that occur as a result of an allergic reaction or other triggers. They can vary in size and can appear anywhere on the body, often accompanied by redness and swelling. Understanding hives is crucial because they can indicate a range of allergic responses, from mild to severe, and recognizing them is key to identifying potential anaphylaxis and the need for emergency interventions.
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