The treatment of middle school students with bad breath is divided into medication, physical therapy and surgical treatment. There is not much difference between the treatment of middle school students with bad breath and adults with bad breath, and it can be improved in the following ways; 1. medication: medication for secondary school students with bad odor can relieve the symptoms, but not cure, need to be used continuously, such as the use of 2~5% formaldehyde solution, axillary odor powder topical application. 2. Physical therapy: if the fox odor is particularly serious, you can also consider surgical treatment, such as the use of laser, microwave, etc., with the advantages of small damage, fast recovery, etc., the sweat glands may continue to develop after surgery, and the postoperative recurrence rate is relatively high. 3. Surgical treatment: secondary school students can also be directly surgical removal of axillary sweat glands, reduce or impede the secretion of sweat glands, to achieve the purpose of the treatment of bad breath. If the symptoms of bad breath in high school students are serious and continue to be unrelieved, it is recommended to go to the hospital in time, and not blindly use medication on their own.