Mouth ulcers can be relieved by gargling with mouthwash, along with topical medications such as dexamethasone acetate paste tablets. Typical clinical symptoms of mouth ulcers are redness, swelling, concavity and pain, especially pain is particularly obvious, sometimes affecting eating or speaking. When the ulcer attack can use gargle to gargle to relieve the pain, the serious use of dexamethasone acetate paste tablets and so on can effectively relieve the pain. You can also go to the stomatology department for cauterization of ulcers, using medication under local anesthesia to promote the healing of ulcers. Mouth ulcers are a disease caused by low immunity, and need to actively strengthen physical exercise to improve their own immunity. Therefore, mouth ulcers can be relieved by gargling with the use of dexamethasone acetate paste tablets on the affected area to relieve pain, if necessary, to the stomatology department for medical treatment, the use of medication need to comply with medical advice.