How does radiation feel? Radiation does not hurt. The machine does not touch you. There are no needles. And unlike an MRI scan, the radiation machine is quiet. Some people say that they see bright lights when the machine is working, even though their eyes are closed. Some say they smell something different. Both of these are normal experiences. Because radiation beams treat anything in their path, you might notice patches of itchy or dry skin in the area being treated. Tell your parents so they can call the radiation doctor. Do not put anything on your skin until they talk to the doctor. When you shower, just use plain water to clean this area until your doctor calls. He or she will tell you what to use on the skin to make it feel better. As your body goes about its work clearing away the cells treated with radiation, you might feel more tired than usual. This will last for a few months following your last treatment. It is normal. Plan your day with fewer activities, and give your body a chance to rest when it needs it. With time, your energy will come back to normal. Answered by Deneen Hesser, nurse educator, American Brain Tumor Association July, 2007