Mouth ulcers can be treated with local symptomatic drugs such as rehabilitation of new liquid or compound borax solution gargle, preventive methods are mainly supplemental vitamins such as vitamin B2, to develop good personal oral hygiene and avoid stimulating spicy food. 1. Treatment: usually easy to appear in the mouth mucous membrane ulceration, erosion and other symptoms, this is a manifestation of oral ulcers, you can use local symptomatic drugs such as rehabilitation of new liquid or borax solution gargle, which can alleviate the local inflammation of the mucous membrane, promote mucosal healing, shorten the onset of ulcers time. 2. Preventive methods: some patients with mouth ulcers are due to the lack of vitamins, so you can supplement vitamins such as vitamin B2, but also eat more vegetables. Need to develop good personal oral hygiene habits, and need to pay attention to avoid stimulating spicy food, such as chili peppers, alcohol, etc., these foods will further damage the oral mucosa and trigger ulcers, it is recommended to eat less. Reminder: If the mouth ulcers can not be relieved, it is recommended to go to the hospital as soon as possible for medical treatment.