These include surgery, radiation, chemotherapy and biotherapy. One or more of these treatments may be used to treat your cancer. Chemotherapy is the use of drugs, usually more than one drug is used to treat your specific cancer. Chemotherapy is intended to kill cancer cells that may or may not be undetectable. Unfortunately, chemotherapy will not only kill cancer cells, but will also kill any normal cells that are rapidly multiplying.
Normal cells differ from cancer cells by their capacity to repair themselves.
Therefore, chemotherapy will theoretically kill cancer cells and eliminate them to a level that your own immune system will destroy what is remaining. The goals of chemotherapy can be for cure, control, or palliation. Cure would mean that the cancer treatments, which include chemotherapy, would eliminate all of your cancer and it would not return. A second goal may be control of the cancer. Chemotherapy would be used to keep the cancer from spreading.