Recurrent aphthous ulcers are a common and frequent disease of the oral mucosa. In terms of treatment, when the ulcers in the mouth attack can be applied locally on the surface of the ulcers, such as spray watermelon cream spray, open throat sword spray, metronidazole film, lidocaine gel, recombinant human epidermal growth factor gel and other drugs to promote the healing of ulcers, you can also use rehabilitation new liquid gargle to promote ulcer healing. People prone to mouth ulcers should pay attention to dietary regulation, avoid spicy and stimulating food, diet should be based on light, easily digestible food, eat more fresh vegetables and fruits, to maintain a balanced nutrition. Ensure a regular routine, go to bed early, get up early, exercise in moderation, and don’t stay up late or turn black and white from time to time. At the same time to relax, let the mind relax and calm, do not make yourself in a long-term tension, anxiety. Appropriate to improve immunity, if the immune system is very low people, you can take the appropriate amount of immunity-enhancing drugs.