Radiation therapy is particularly effective when used to treat certain types of localized cancers, such as malignant tumors of the lymph nodes or vocal cords. Radiation uses a high energy beam to kill cancer cells. This form of treatment is effective only for the cancer cells within the area receiving the radiation. Radiation can produce troublesome side effects, such as dry mouth, nausea, diarrhea, hair loss and fatigue. The severity of these symptoms depends on where and how much radiation is used.
Chemotherapy involves the use of powerful medications to treat cancer.
It's effective in treating cancer that is widespread. Chemotherapy often consists of a combination of drugs that work together to kill cancer cells. Depending on the specific drugs used, chemotherapy can produce various side effects similar to radiation therapy. Surgery has long been the foundation of cancer treatment. The goal of surgery can vary.