Mouth ulcer inflammation is usually treated by removing external irritants and using symptomatic drugs. At the same time to maintain a good psychological state. 1. Remove external stimuli. Mouth ulcers may be due to external mechanical stimulation or lack of vitamins, low immunity related to the need to remove external stimuli, such as sharp teeth, eat less spicy food, supplement vitamin B complex, etc., to strengthen the exercise to improve physical fitness. 2. Drug treatment. Ulcer inflammation treatment is generally used, anti-inflammatory drugs (cediriodine tablets, ice boron powder), pain-relieving drugs (lidocaine gel), pro-healing drugs (glucocorticoids, epidermal growth factor gel). Oral ulcers often have the ability to heal themselves after the removal of external stimuli, and medication should be used in accordance with medical advice.