Mouth ulcers, if they are recurrent aphthous ulcers, usually heal themselves within 1-2 weeks. However, in the case of oral leukoplakia there is no cure, and if treated aggressively, it will usually resolve within a few months. In the case of recurrent aphthous ulcers, they are cyclic and self-limiting, and usually heal spontaneously within 1-2 weeks. In the case of traumatic ulcers, they usually heal within 1-2 weeks after removal of the irritant. At present, there is no cure for oral leukoplakia. Its treatment principle is to pay attention to oral hygiene, eliminate local irritants, monitor and prevent cancer. The main therapeutic drugs are exfoliating drugs. Usually with active treatment, it will be relieved within a few months. If there are oral ulcers, white spots, it is recommended to go to the hospital in time, under the guidance of the doctor to give targeted treatment or treatment.