When you have radiation treatment for cancer, you may have some changes in your skin in the area being treated. Your skin may turn red, peel, or itch. You should treat your skin with care while receiving radiation therapy.
External radiation therapy uses high-powered x-rays or particles to kill cancer cells. The rays or particles are aimed directly at the tumor from outside of the body. Radiation therapy also damages or kills healthy cells. During treatment, skin cells do not have enough time to grow back between radiation sessions. This causes side effects.