Dry mouth and taste loss caused by radiotherapy for nasopharyngeal carcinoma are the main side effects. The side effects of dry mouth are irreversible, because the salivary glands are completely destroyed during radiotherapy. Therefore, you can only drink a small mouthful of water to moisten your throat at any time. The problem of taste loss will gradually recover after radiotherapy, but the recovery process varies from person to person. Some people recover quickly, while others recover slowly. In order to make the taste buds "burned" by radiotherapy recover as soon as possible, you can also take vitamin B2 and oryzanol for conditioning. Vitamin B2 is one of the main auxiliary drugs for treating oral ulcer, oryzanol is one of the main drugs for treating autonomic nerve dysfunction, and taste nerve belongs to autonomic nerve.

(He Dequan)