The most common treatment for mouth sores is topical medication. Mouth sores are self-healing and usually heal themselves in seven to ten days. There are different causes of mouth sores, including recurrent sores and traumatic sores. The cause of recurrent mouth sores is not very clear and needs to be examined in terms of immune function. For traumatic mouth sores, irritants can be removed, followed by topical sprays and mouthwashes, so that mouth sores can be well treated. Commonly used sprays include stomatitis sprays, throat-opening sword sprays, etc. Commonly used mouthwashes include Chlorhexidine solution, Rehab solution, Tinidazole solution and so on. These are helpful for removing harmful flora in the mouth and maintaining oral hygiene to prevent infection. It is also important to strengthen nutrition, take more vitamins, and adjust your diet to include more fresh vegetables and fruits rich in vitamins to prevent mouth sores. For mouth sores, the main thing is to prevent local inflammation and prevent infection. The application of some local medications can be a good treatment for mouth sores, which will generally heal in about a week. If the mouth sores do not heal in more than 2 weeks, it is recommended to go to the hospital for pathological examination. It is important to maintain good oral hygiene and go to the hospital regularly for oral examination so as to prevent some oral diseases.