Mouth ulcers need to remove stimulating factors, according to different conditions using drugs symptomatic treatment. 1. Remove the stimulating factors: oral ulcers etiology is unknown, mostly with local stimulation, mental factors, genetic factors, micronutrient deficiencies, etc., first of all, to remove the local sharp tip of the poor restorations, to avoid mental stress, eat more fresh fruits and vegetables to supplement the body’s required nutrients. 2. medication symptomatic treatment: you can use the rehabilitation of new liquid orally, with the yin and muscle, through the role of blood, to promote the healing of ulcers; pain obviously affect the eating, you can locally rub lidocaine gel to reduce the symptoms of pain; accompanied by infection can be used locally chlorohexidine mouthwash. Mouth ulcers, it is recommended to consult a doctor for examination, under the guidance of the doctor to use drugs, to avoid blind use of drugs, produce adverse effects.