Hives are welts on the surface of skin that appear suddenly due to a number of conditions, including sun exposure, stress, infection, an illness or an allergy. These red skin bumps often itch and vary in sizes. They can merge and form a cluster of bigger bumps. Additionally, these skin bumps move around; they have a habit of disappearing and then reappearing on another location. Also called Urticaria, hives usually go away on their own within some time, but in rare cases, a medication might be required. A shower usually helps ease the itching or burning sensation caused by these itchy bumps.
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