Generally eat compound vitamin B, vitamin C, rehabilitation of new liquid, watermelon cream and other drugs, can repair the oral mucosa, usually can eat more vegetables, fruits and other vitamin-rich food. 1 vitamin B complex: vitamin B family in the body involved in redox reactions, energy metabolism, material transformation and many other important physiological activity processes, the lack of vitamin B will appear mouth ulcers, stomatitis and other diseases. Supplementation of vitamin B complex is beneficial to the repair of oral mucosa. Allergic to this drug is prohibited, may appear rash, itching and other adverse reactions. 2. Vitamin C: Vitamin C has the functions of antioxidant, anti-aging, participating in collagen formation and promoting tissue repair, which can repair the oral mucosa. It is prohibited for those who are allergic to this drug, and adverse reactions such as diarrhea, headache and frequent urination may occur. 3. Rehabilitation New Liquid: a kind of Chinese patent medicine with the function of facilitating blood circulation, nourishing yin and generating muscle, which can promote the repair and healing of various ulcers, traumas and other skin and mucous membranes. Note that pregnant women and those who are allergic to this drug are prohibited, adverse reactions are not clear. 4. Watermelon Cream: a kind of Chinese patent medicine with the effect of clearing away heat and fire (removing heat and fire from the body), subduing swelling and relieving pain (eliminating swelling and pain), used for the treatment of sore throat and mouth ulcers. Note that pregnant women and those who are allergic to this drug are prohibited, adverse reactions are not clear. 5. Usually eat vegetables, fruits and other foods rich in vitamin B and vitamin C. Pay attention to the use of medication under the guidance of a physician.