Itchy skin all over the body a scratch up pimples, consider the following several cases: First, papular urticaria, due to mosquito or insect bites produced by the perverse reaction, if the itching is very serious, you can orally Olopatadine Hydrochloride tablets or Epinastine Hydrochloride capsule, topical dinexed ointment mixed with fluphenazine butyl ester ointment coated. If the color of the rash is bright red, you can apply local wet compound cypress liquid coating, detoxification, cool blood treatment. Second, urticaria, this disease is mostly caused by allergic factors, some may be related to cold stimulation, mental factors or Helicobacter pylori, hyperthyroidism and other factors, treatment can be oral fexofenadine hydrochloride tablets or beriberi loratadine capsules, external fluticasone propionate ointment mixed with zinc oxide ointment.