The cause of mouth ulcers is not very clear, mouth ulcers mouth pain is mainly anti-inflammatory and pain relief treatment, can also be carried out systemic allopathic treatment to alleviate the symptoms. 1. medication: anti-inflammatory drugs can be used, such as sodium carboxymethylcellulose, sorbitol, etc., but also other ointments, gargles, tablets and other different forms of anti-inflammatory drugs, oral ulcer film, compound chlorhexidine gargle, etc., to protect the ulcer surface, reduce pain, but also to prevent secondary infections, and to promote the healing of ulcers. 2. Physical therapy: the use of laser, microwave and other therapeutic devices or intraoral ultraviolet radiation can reduce exudation and promote the healing effect. 3. Systemic therapy: using glucocorticoids and other immunosuppressants (e.g. cyclophosphamide, cyclosporine A, azathioprine), anti-infection, anti-allergy, reducing the exudation of inflammatory factors, which can help to relieve the ulcer. The use of immune-enhancing agents enhances the immune function of the body. In addition, supplementation with vitamins and micronutrients, etc. can reduce the incidence of ulcers. Occurrence of mouth ulcers, if there is a suspicion of systemic diseases, can be treated under the guidance of a specialized doctor after examination in the hospital. The above medications need to be used under the supervision of a doctor.