If a small amount of mouthwash is accidentally swallowed, there is a possibility of irritation of the mucous membrane of the esophagus and stomach, but it does not lead to serious damage. So there is no need to worry too much. In the future, you should pay attention to try not to accidentally swallow mouthwash can be. Most of the mouthwash on the market is not drinkable, such as compound chlorhexidine gargle, which contains bactericidal ingredients, the mucous membrane of the digestive tract has a certain stimulating effect. So be careful not to swallow when gargling. Some mouthwash can be drunk, such as rehabilitation new liquid. Even if you take a small amount of it, it doesn’t matter. But again, it is recommended to try not to swallow it. If you accidentally swallow mouthwash, generally speaking, there is no great harm, only due to its stimulation of the mucous membrane of the esophagus and stomach, there may be some discomfort, but will soon return to normal, do not have to worry too much. If you feel obviously uncomfortable after swallowing, it is recommended to go to the hospital for examination and treatment. .