Bad breath may be due to excessive dampness in the body, or dampness and heat entangled with each other in the body, resulting in the weakening of the relevant organs, especially in the stomach, food is difficult to digest, there is excessive corruption and manifested as bad breath. It can also be too much dampness in the body, mouth ulcers or gum-related diseases, or dental caries, periodontitis, food impaction, etc. can lead to bad breath. There are other causes of bad breath besides the mouth and stomach, which need to be examined and treated comprehensively under the guidance of a hospital doctor. For the treatment of halitosis, the treatment of dampness is a large part of the more common flat stomach powder, ginseng and atractylodes, and so on the reasonable application, for the elimination of halitosis have a great effect, in addition to appropriate exercise, enhance gastrointestinal peristalsis is also a method of treatment of halitosis.