Head and neck radiation and chemotherapy help treat cancer, but they can also have side effects. Some of these problems can affect the mouth and could cause you to delay or stop treatment. The side effects can be painful and make it hard to eat, talk and swallow. You are more likely to get an infection, which can be dangerous when you are receiving treatment. To help prevent serious problems, see a dentist at least two weeks before starting chemotherapy or radiation. Your dentist should work with your oncologist to determine appropriate and necessary treatment. The MPE Fund may provide additional benefits for patients undergoing chemotherapy and radiation. For more information please call the MPE Unit at (800) 553-6277.