Patients with gum pain and mouth ulcers can undergo the following treatments: 1. Spray gold throat health, rehabilitation new liquid, watermelon cream, tin type dispersion, etc. on the surface of the ulcer, and red and swollen gums can be coated with iodine glycerin to reduce swelling. 2. Inject lidocaine and dexamethasone near the gums when the pain is unbearable to relieve pain and promote healing. 3. Use 10% silver nitrate solution to cauterize the ulcer and inflammation when it has not healed for a long time. 4, diet should avoid eating spicy, stimulating food, timely supplementation of vitamins and trace elements, the application of thymidine, transfer factor, etc. to improve the body’s immunity, to speed up the healing.