The primary goal of cancer treatment is to completely rid the body of cancer. However, this is not always possible.
Radiation therapy is a procedure that uses high energy rays to treat cancer.
A normal course of radiation therapy depends on the type of cancer diagnosed. In general, most types of cancer require a five to six week course of radiation therapy including five treatment sessions per week. External radiation delivers the radiation ray by a machine from the outside of the body to the internal tissues, whereas internal radiation is the placement of the radioactive material inside a body cavity or opening or directly touching the outside of the body. Chemotherapy uses drugs to kill cancer cells. Chemotherapy can be given in a doctor's office, an outpatient clinic, or a hospital.