Therefore, surgery, radiotherapy and chemotherapy can only eliminate superficial tumors, but can't cure them radically. Before long, the patient will find that the tumor has recurred and metastasized. This is why only Chinese herbal medicine can constrict tumor blood vessels and prevent tumors from getting a little nutrition. Tumors that are not nourished naturally shrink, which is the means to truly and completely cure malignant tumors (cancer)