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Examples include cosmetics, hairy caterpillars, fish, latex, meat, medicines, saliva, stinging nettle, textiles, or white flour Delayed pressure urticaria: Hives appear (often after a few hours delay) where pressure has been exerted to a certain area of skin, for example, by a handbag, seat belt, standing on a ladder rung, sitting on a horse Solar urticaria: Typically involves hives appearing on body sites not usually exposed to the sun, such as the abdomen and top of the thighs, sparing the face, neck, and hands
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