Hi, Sabja, you are pretty early in the "recovery stage" at this point. The dry mouth is experienced by many people after radiation, but the sores should be able to be under control with your Doctor's help. Be very persistent about asking for medication to get rid of the sores and follow the directions. Can you swallow broths, icecream, shakes? Tell us more about what you are trying to eat. Do you take any kind of pain meds before you eat? Remember, recovery is a slow process, just don't quit trying to eat. Amy in the Ozarks