The prognosis for patients with allergic purpura is generally good, and their survival or how long they live is similar to that of normal people, with little difference. The majority of patients with allergic purpura generally have a good prognosis as long as they do not develop severe gastrointestinal damage, brain damage, and kidney damage. Because allergic purpura is an allergic disease, and it occurs mostly in children and adolescents. So as long as you insist on early diagnosis and early effective treatment, most of the children have a good prognosis. Therefore, it is important to understand the disease correctly, avoid tension and anxiety, make early diagnosis and insist on effective treatment. It is also important to have regular follow-up examinations and monitor the relevant indicators. During the treatment period, we must pay attention to reducing activities, controlling diet and strengthening care, which will help recovery.