There is no evidence to prove what drugs or food can make mouth ulcers get well faster, the duration of the disease with the cause and the patient’s systemic condition and other factors, commonly used treatment methods for local medication or systemic medication, as follows. 1. Local medication: Tretinoin oral paste, dexamethasone ointment or spray, chlorhexidine gargle, compound borax gargle and so on can be used. 2. Systemic drugs: including glucocorticoids such as prednisone and dexamethasone, immunosuppressants such as azathioprine, cyclophosphamide and cyclosporine, and immune enhancers such as transfer factor and thymosin. All of the above drugs need to be used under the guidance of a doctor, if the ulcer symptoms are serious, or accompanied by other symptoms, it is recommended to go to the hospital in a timely manner, and receive targeted treatment as soon as possible.