The following therapies are generally are not used as often to treat cancer as the ones on the prior page .
Cancer begins in the cell.
Cellular changes are brought about by toxins, alcohol, smoke, free radicals, and the aging process. Vitamins C, D, A, E, and selenium are antioxidants. A form of arsenic once used as insect poison has won U.S. Food and Drug Administration approval as a leukemia treatment after studies found small doses helped patients with a rare but deadly form of the disease. Should only be used under careful supervision. A bolus is like a suppository, used either vaginally or anally.