Hello, this is determined based on the patient’s physical condition, age and condition. Chemotherapy, as a common clinical cancer treatment method, can control the spread of cancer cells and the development of the disease in the short term, but at the same time It can also cause many adverse reactions to patients, such as nausea, vomiting, hair loss, diarrhea, decreased white blood cell index, impaired liver and kidney function, etc. The toxic and side effects of chemotherapy cause the patient's immune function to decline. If the immune function continues to decline, it can promote the recurrence and metastasis of the tumor, which will seriously affect the patient's quality of life and survival rate, and even cause the patient to lose more than the gain is worth. Fortunately, rh2 can better improve immunity, enhance one's own disease resistance, and reduce the side effects of chemotherapy. At the same time, the increased immune cells and cytokines can improve the therapeutic effect by enhancing the sensitivity of tumor cells to radiotherapy and chemotherapy.