Children’s purpura, if the symptoms are mild, only rash, joint swelling and other manifestations are not terrible, after active and effective treatment can be cured; but if the symptoms are more serious, resulting in gastrointestinal bleeding, shock, kidney damage is more serious. If a child’s allergic purpura is simple allergic purpura, it is usually a self-limiting disease. The course of the disease can mostly be relieved by itself within 1 to 2 weeks. It often does not cause serious complications and is not dangerous to life. Children’s purpura is related to the degree of progression of the disease and the organs involved. If it is abdominal or renal purpura, the condition is more serious, and if treatment is not timely, gastrointestinal bleeding, shock, renal failure or even life-threatening. Children’s allergic purpura, need to go to the regular hospital, under the guidance of the physician to choose reasonable drugs and methods of treatment, can not be arbitrary use of drugs.