Little red pimple rises on the body more scratch more itch is how to return a responsibility

Small red pimples appear on the body, and the more itchy it is, the skin allergic reaction is considered. Urticaria is most common, which belongs to an allergic skin disease. Urticaria is a localized edema reaction due to the expansion of small blood vessels and increased permeability of skin mucosa. It usually subsides within 2 to 24 hours, but new rashes are easy to occur repeatedly. There are many reasons for urticaria, related to long-term exposure to allergens, also related to the decline in immunity of the body, also related to endocrine disorders. Expressed urticaria, to be treated in time, it is best to find allergens.