Chemotherapy, also known as chemotherapy, is a systemic treatment. Chemotherapy may cause a decrease in resistance and low immunity, which can easily cause a cold. If a cold is caused during chemotherapy, it may cause the patient’s body to be unable to tolerate chemotherapy, loss of appetite, aversion to oil, and inability to eat, which may require postponement of chemotherapy. Of course, if it is a mild cold, it may not affect too much. It is necessary to drink more water, and then eat a high quality protein diet to strengthen the body’s resistance, which also has the effect of treating the cold and reducing the side effects of chemotherapy. If there is no special contraindication to chemotherapy, you can also take cold medicine, and pay attention to more rest, and also need to check the blood routine before and after chemotherapy. If the white blood cells are too low, severe bone marrow suppression, white blood cell decline, may also cause a cold.