It is not advisable to break the blisters in the mouth, they are easily infected after breaking. You can take some detoxification punch, in general, mouth fire is the cause of this blister, you can get effective treatment by drinking heat detoxification drinks, such as silver fork detoxification punch, niuhuang detoxification tablets, etc. have a good effect. Eat a light diet and avoid spicy foods. The cause of blisters on the mouth is usually due to fire. Therefore, avoiding spicy food intake is a prerequisite for treating the condition. Eat a light diet and take sufficient vitamins to help treat blisters quickly, and ensure sufficient sleep, as people who do not get enough sleep for a long time are prone to fires that can cause bad symptoms such as blisters on the mouth. Reduce staying up late and reasonable rest time, so that the body can get sufficient rest, drink more herbal tea to clear heat and detoxification, herbal tea for fire and blisters caused by a very good therapeutic effect, drinking herbal tea can go to a special herbal tea store to drink, or their own boiled to drink, like chrysanthemum tea, Luo Han Guo, fat sea, honeysuckle, etc. have the effect of clearing heat and detoxification.