Chronic ITP, an autoimmune disease, is a disease in which one’s own antibodies and T-lymphocytes fight against one’s own cells and tissues (such as platelets), causing them to be destroyed. This abnormality of the immune system often has some “genetic level” defect, so it is difficult to cure completely, but only to control the disease to some extent. The drugs used are immunosuppressive, and while the “abnormal immunity” is suppressed, the “normal immunity” is also suppressed. Therefore, it is now believed that for chronic ITP, if the platelets are above 30×109/L and there is no obvious bleeding manifestation, the treatment can be suspended, so for you, in the process of hormone reduction, there is no need to The platelets must be maintained above 100×109/L, but above 30×109/L is sufficient. The purpose of adding danazol is to be able to reduce the hormone and eventually stop it, but only if it leads to abnormal liver function. If hormone reduction is not possible (“hormone dependence”, where platelets are below 30×109/L), other second-line drugs such as cyclosporine A can be used for a longer period of time. For a few patients who are particularly refractory, melphalan may be used. Other drugs that promote platelet production, such as TPO and certain botanicals (golden potato leaf hemostatic compound), can also be used for a long time.