Most people begin to choose traditional Chinese medicine for the treatment of purpura nephritis. One is the internal and external treatment, Through the treatment of primary diseases, including the primary factors of purpura, it is to adjust and improve the condition of purpura according to the cause of allergic purpura, correct and prevent the occurrence of allergic purpura. From the external treatment of purpura nephritis, there are obvious local symptoms, and the obvious local symptoms are those that cause certain damage to the body, In this case, we usually choose external treatment, but external treatment is only a temporary cure rather than a permanent cure. Therefore, it should be treated mainly by taking orally.