Description of the problem: There is a small piece of white object around the mouth that is opened and it will be a little painful.
Date of the problem:2021-02-16
Patient information:Age: 17 years old, Gender: Female
Problem analysis:Hello, I am your doctor. Have you caught a cold recently? Did you bite?
Guide suggestion: In this case, it does not rule out fire or virus infection.
Suggestions are for reference only. If the problem is serious, please go to the hospital for detailed inspection