The first thing you can do with mouth ulcers is to eat some Chinese medicine with the function of clearing heat and dispelling fire, such as clearing fire tablets, gentian diarrhea liver pills, niuhuang detoxification tablets, etc. You can also drink green tea with the function of removing fire, such as honeysuckle tea, chrysanthemum tea, peppermint tea, etc. Secondly, people prone to mouth ulcers should eat more fresh fruits to supplement vitamin C. You can eat kiwi, grapefruit, grapes, oranges, dragon fruit and so on, and eat more food rich in trace elements iron and zinc, such as seafood, animal liver and so on. Then the diet should be light, easy to digest diet, avoid spicy, stimulating, fried food, people prone to mouth ulcers to quit smoking, limit alcohol, and to ensure a regular work and rest schedule, can not stay up late and day and night reversal. Finally, people suffering from mouth ulcers should adjust their mental and psychological conditions to avoid long-term anxiety and tension.