Can take amoxicillin during chemotherapy. Chemotherapy is a commonly used treatment in the treatment of malignant neoplastic diseases, and after the application of chemotherapeutic drugs, patients may show signs of myelosuppression, which is mainly reflected in the decrease of white blood cells, hemoglobin and platelet levels. Among them, white blood cells are important immune cells in the body, and the decline in white blood cell counts can lead to secondary infections in patients. Amoxicillin is a commonly used semisynthetic penicillin-based broad-spectrum beta-lactam antibiotic that can be used empirically as an anti-infective treatment after chemotherapy. It is also necessary to test the patient’s foci of infection and bacterial resistance, and based on the results of bacterial resistance testing, adjust to a sensitive antibiotic to continue treatment. Amoxicillin and chemotherapy drugs are not conflicting, but the first choice of anti-infective treatment should be combined with the results of the pathogen resistance test, under the guidance of specialists to choose the appropriate anti-infective drugs, it is not recommended to unauthorized use or discontinuation of drugs.