Chinese patent medicines that can be taken for bad breath due to cold stomach include Lizhong Pill, Radix Rehmanniae Pill, with Hovenia Conducting Pill, Baohe Pill and Da Shanzha Pill that strengthen the spleen and help digestion, and should be used under the guidance of a physician. Stomach cold bad breath is generally due to spleen and stomach deficiency cold (spleen and stomach weak and cold), resulting in food indigestion, food accumulation (food indigestion and accumulation in the stomach) resulting in bad breath, can be used Lizhong Pill, with the help of Lizhong Pill, with the help of Lizhong Pill in order to warm the middle to dispel the cold, strengthen the spleen and Yang, in order to achieve the effect of regulating the stomach cold body. Coldness in the spleen and stomach causes the spleen to lose transportation and digestion, which will lead to poor digestion of food and bad breath caused by heat over time. On the basis of strengthening the spleen and warming the yang, medicines such as Hovenia Pill, Baohe Pill, Da Shanzha Pill, etc., can be taken to help digestion and improve the bad breath caused by accumulation of food. When bad breath is caused by cold stomach, it is necessary to standardize the treatment under the guidance of professional doctors, do not buy drugs and take them by yourself to avoid adverse effects.