2. Chemotherapy: Chemotherapy is based on the use of cancer-killer drugs either intravenously or orally to destroy cancer cells. The drugs travel through the bloodstream to reach the cancer cells. Among the times chemotherapy can be helpful are after surgery, known as adjuvant therapy, for patients who show no evidence of cancer after surgery chemo is then used to kill any cancer cells that may have been left behind or may have spread but can’t be seen, even on imaging tests.

Read more about chemotherapy as a treatment for breast cancer.