Whether chronic or heavy, herbs are ineffective, hormones (corticosteroids) are equally ineffective, and simple erythropoietin and granulocyte colony-stimulating factor are ineffective. The first choice of drugs for chronic reoccurrence: cyclosporine A and androgens (represented by Conilon, which may be mixed in many so-called reoccurrence treatment herbs). But the efficacy may be very slow, and you need to take them for more than 1 year to see whether they are effective or not. It is a pity that you stop them hastily after taking them for 6 months for the first time. In case of heavy reoccurrence, or transfusion dependence, anti-thymocyte (lymphocyte) globulin (ATG or ALG) plus cyclosporine A is recommended for treatment.