Sore throat after radiotherapy, need to be alert to radioactive mucositis, is a common side effect caused by radiotherapy, mainly manifested in the normal tissue mucous membrane damage caused by radiotherapy, can be relieved by drinking more water, choose a light diet, and if necessary, the application of rehabilitation of new liquid and other ways. Sore throat after radiotherapy, the application of drug treatment, such as containing drugs such as rehabilitation of new, for the repair of mucous membrane has a certain effect, diet can drink more water, light diet, avoid spicy and stimulating food, reduce the time of using the voice, pay attention to oral hygiene, eat more fruits and vegetables and so on can promote the repair of the mucous membrane and so on. For the aggravation of sore throat, combined with infection, if necessary, can be under the guidance of specialists in the application of antibiotic anti-inflammatory treatment. Sore throat after radiotherapy, it is recommended to go to the specialist in time for follow-up, clear diagnosis and treatment, so as not to delay the condition.