Bad breath can be completely cured by taking Chinese medicine. The main causes of bad breath are oral diseases, sinusitis, tonsillitis, gastric ulcers, etc., which can be cured by taking Chinese medicine through internal treatment for the above-mentioned inflammatory diseases and diseases, and the effect is very satisfactory. For example, some patients’ bad breath is caused by stomach diseases, such as gastritis and gastric ulcer, so they can take Chinese herbal remedies such as Ping Gastric San and Mu Xiang Shun Qi Wan to promote gastrointestinal peristalsis, reduce the retention of food in the stomach, and reduce the process of food fermentation, which are conducive to clearing bad breath and restoring patients’ health. In the process of applying traditional Chinese medicine for the treatment of bad breath, it can be combined with western medicine like antibiotics, etc., all of which help to get rid of bad breath.