Clinically there is no best way to treat mouth ulcers, mouth ulcers are mainly divided into traumatic mouth ulcers, cancerous mouth ulcers, recurrent Aphthous mouth ulcers, recurrent Aphthous mouth ulcers as an example, after the emergence of life habits can be changed or drug treatment. 1. Lifestyle habits, usually need to maintain a good diet, light diet, eat more vegetables and fruits, avoid local stimulation, maintain a regular work and rest, happy mood, can alleviate the recurrence frequency of recurrent Aphthous mouth ulcers. 2. medication, usually can be used under the guidance of the doctor medication, such as chlorhexidine solution, cediriodine tablets and so on. A treatment plan needs to be drawn up according to the specific situation. The use of medication should follow the doctor’s instructions, it is best not to blindly use drugs, if there is an abnormality need to consult a doctor in a timely manner.