Chinese herbal prescriptions for the treatment of halitosis include Clear Stomach San and Hovenia Conducting Pill. 1. Clear Stomach San is composed of Angelica sinensis, Coptis chinensis, Radix et rhizoma, Radix et rhizoma, Rhizoma Dandelionis, and Rhizoma Asiatica, with the effect of clearing heat and cooling the blood (relieving blood heat by clearing heat), and is used for the treatment of hot and smelly breath, swollen and painful gums, and bleeding gums due to blazing fire in the stomach. 2. Citrus Aurantium Pill is composed of rhubarb, Citrus aurantium, Citrus aurantium, Citrus aurantium, Scutellaria baicalensis, Scutellaria baicalensis, Poria, Atractylodis Macrocephalae, Ze Xie Diarrhea, and its efficacy is to eliminate stagnation of food (to promote digestion of food), clearing away heat and dampness, and is used in treating bad breath due to damp-heat stagnation of food (food is not well-digested and accumulates in the stomach), distension of the epigastric region (the stomach), constipated stools or dyspepsia, and urination. It is important to note that there are many causes of bad breath. In addition to the above, there are also liver-heat that violates the stomach (fire produced by the liver invades the stomach), lung-heat congestion, etc., so care needs to be taken when choosing herbal prescriptions. In addition, bad living and eating habits, such as smoking and not rinsing the mouth after meals, may also cause bad breath. So while using medication, one should also actively change the bad dietary habits. If there is a need for medication, it should be used under the guidance of a doctor, and should not be used blindly on its own to avoid adverse consequences.