Mucosal repair usually takes 5-7 days, if you want to repair quickly, you can refer to the following recommendations: 1. supplement vitamin B, vitamin C. 2. supplement zinc, elemental zinc can promote mucosal repair, you can choose zinc granules of licorice, zinc and selenium, zinc gluconate and other preparations. 3. improve intestinal flora, supplement probiotics, regulate the body’s immune status. 4. oral antibiotics, oral ulcers may be caused by streptococcal infection, patients can take oral amoxicillin. 5. 5. local medication, such as rehabilitation new liquid gargle, recombinant bovine fibroblast growth factor spray, watermelon cream, stomatitis spray topical spray, compound chamomile lidocaine gel topical application, etc.