Mouth ulcers can be treated by medication, physical therapy, psychotherapy, etc., to reduce pain, promote ulcer healing and prolong the recurrence interval, because the specific cause of the disease is not yet clear so it can not be cured. 1. Drug treatment: including local medication, such as tretinoin oral paste, rehabilitation of new liquid, etc., for severe symptoms or frequent recurrence, can be combined with systemic drugs, such as dexamethasone, cyclophosphamide and so on. 2. Physical therapy: such as laser therapy, ultrasonic atomization therapy, microwave therapy, etc. 3. Psychological treatment: nervousness, anxiety, depression and other emotions may be related to the occurrence of oral ulcers, appropriate psychological treatment can help to reduce the frequency of recurrence of oral ulcers. Mouth ulcers are recommended to consult a doctor in a timely manner, with the help of a doctor to clarify the cause of the disease, and to carry out targeted treatment or therapy. The above medications should be used under the guidance of a doctor and should not be used privately.