Periodontitis can be rinsed with mouthwash, which can inhibit the growth of bacteria in the mouth and help relieve the symptoms of gum discomfort. 1. Periodontitis is mainly a chronic inflammation of the periodontal support tissues caused by local factors. If gingivitis is not treated in time, the inflammation can spread from the gums to the deeper layers of the periodontal membrane, alveolar bone and dentin and develop into periodontitis, which will lead to toothache, bad breath, loose teeth and other symptoms. 2. Periodontitis with mouthwash has an auxiliary role, because mouthwash has anti-inflammatory and bactericidal cleaning of the oral cavity, can effectively inhibit the growth of bacteria in the oral cavity, so as to alleviate the symptoms. The occurrence of periodontitis can use mouthwash to alleviate the symptoms, but mouthwash can only play an auxiliary role, periodontitis needs to be scaled to remove dental calculus and other methods to cure. It is recommended that patients with periodontitis go to the hospital as soon as possible, and while treating periodontitis according to the doctor’s prescription, mouthwash can be used to help alleviate the symptoms.