How chemotherapy works to treat cancer? Can chemotherapy cure cancer?

Chemotherapy Chemotherapy which simply means the use of drugs or medications to treat disease came into general use in the 1970s after clinical trials proved them to be effective in treating cancer. To many people, chemotherapy is frightening because of the fears of side effects that are sometimes caused by the use of the potent drugs needed to disrupt the cancer cells' ability to grow and multiply. The use of chemotherapy drugs has been greatly refined over the years, so that many of the earlier side effects have been modified. Chemotherapy may be given in several ways. Sometimes drugs are given in pill or capsule form and taken by mouth. Other times they may be injected into a muscle or given through a vein. How fast the cancer cells are destroyed may vary with the medication and the type of cancer. Because each drug acts on the cell in its own way, and at different times in the cell cycle, using them in combination can be more effective than using any one of them individually...