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Hives are often a symptom of an allergic response and can be literally found anywhere on the body. The will most often appear as raised itchy bumps or patches on the skin. They can by any shape or size. Their appearance is caused by a massive release of histamine in the body and not necessarily restricted to an allergy. They tend to last from just a few to up to twenty four hours. They can also move around the body and are not limited t just one area. The most common cause of hives is the ingestion of an allergen that your body is particularly sensitive to such as peanuts or fruit. Hives can even be a bi product of stress.