Treatment of mouth ulcers mainly includes local medication, systemic medication, physical therapy, psychotherapy and so on. 1. Local treatment: patients with oral ulcers are recommended to give priority to local medication. Such as lidocaine gel gel and other pain relieving drugs, chlorhexidine gargle and other anti-inflammatory drugs; oral ulcers, recombinant bovine basic fibroblast growth factor gel, watermelon cream and other drugs to promote healing. 2. Systemic medication: Systemic medication mainly includes immune preparations such as levamisole and thymosin, and vitamins such as vitamin C tablets and vitamin B compound. 3. Physical therapy: laser irradiation can help regenerate the mucous membrane and promote the healing of ulcers. 4. Psychological treatment: adjust the mind, keep happy, rest more, avoid pessimism and negativity. Specific treatment should be carried out under the guidance of the doctor, and the use of drugs should follow the doctor’s instructions.