The treatment of leukemia after vaccination still focuses on the treatment of leukemia. According to the type of leukemia and the severity of the disease, appropriate treatment plan will be chosen, and common treatments include component blood transfusion, drug treatment, hematopoietic stem cell transplantation, and so on. 1. Blood transfusion therapy: according to the degree of anemia, choose oxygen, transfusion of concentrated red blood cells, transfusion of single platelet suspension therapy, transfusion of fibrinogen, plasminogen complex, plasma and other blood products. 2. Drug therapy: the treatment drugs include vincristine, cyclophosphamide, erythromycin, cytarabine and other chemotherapeutic drugs, in addition to molecular targeting drug therapy, interferon therapy and so on, the specific drugs need to be selected according to the type and stage of leukemia. 3. Hematopoietic stem cell transplantation: this method is applicable to acute lymphoid and myeloid leukemia, while for chronic leukemia, it is only necessary to take drugs to control the progress of the disease. In general, vaccination is not recommended for leukemia patients, as the immune system of leukemia patients is disordered, and the platelet count is low, the injection site is easy to bleed, and the treatment is still similar to the normal treatment of leukemia. It is recommended to actively cooperate with the doctor to choose the appropriate treatment plan. All of the above drugs should be used under the guidance of a doctor.