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Overview of Hives

Hives, also called urticaria, are raised lesions that appear suddenly on the skin (called "wheals"). Hives usually are more or less round in shape and vary in size, up to several inches in diameter. They can appear anywhere on the body, as a single hive or in groups, and may be pink, red, or whitish in color.

Hives can disappear and then reappear, either in the same spot or in another area, and may last for hours, days, or even months or years. They may join together to ...Read the full article