Pain in throat after radiotherapy for nasopharyngeal cancer can be treated with oral antibiotics and hormonal drugs. 1. Antibiotics: when nasopharyngeal cancer patients have sore throat after radiotherapy, it is considered to be related with radioactive mucous membrane damage, which leads to upper respiratory tract infection, tonsil inflammation and other problems. Symptoms of erosion and ulceration can appear in the wall of tonsil throat, and it is recommended to take oral antibiotics such as cefadroxil antibiotics for tonsil inflammation, and termination of treatment is needed if it is not tolerated. 2. Hormonal drugs: oral antibiotics are ineffective, it is recommended that patients need to take oral hormonal drugs for treatment, hormonal drugs can choose dexamethasone for treatment. 3. Pay attention to the diet light, try not to eat too salty and spicy food. The above medicines are recommended to be used under the guidance of doctor or pharmacist, and should not be used by oneself to avoid adverse reactions. Nasopharyngeal cancer patients who have throat pain after radiotherapy are recommended to consult ENT department of regular hospitals.