Radiotherapy oral ulcers, acute lesions can gradually heal about 2-4 weeks after the end of radiotherapy, or 1-2 weeks after taking effective treatment measures. Usually, the surface of the mouth will have redness of the mucosa, erosion, ulceration or bleeding, and obvious tenderness. Healing medications such as recombinant human epidermal growth factor or keratinocyte growth factor, or basic fibroblast growth factor can be used to promote healing. In addition, you can use the compound cortical powder, bead yellow powder or dexamethasone drug film, which can also promote wound healing; if the ulceration is more serious or the ulceration surface is deeper and larger, you can also carry out the local mucosal injection, the use of closed drugs, such as prednisolone suspension for local injection of closure, which can promote the rapid healing of the wound. If there is a symptom of dry mouth, you can use Trichostatin and Neostigmine, which can promote the secretion of the glands, and the wound can also promote its rapid healing.