Huo Xiang Zheng Qi is a proprietary Chinese medicine that can warm up dampness in the spleen and stomach, aromatize, surface dispersion, and open the orifices, and is not generally used to treat coughs, which generally require entering the lung meridian, while Huo Xiang Zheng Qi is more likely to enter the spleen and stomach meridian. If a gastrointestinal cold causes nausea, vomiting, or diarrhea, Chinese medicine generally identifies dampness as the main cause, so Huo Xiang Zheng Qi is mainly used to aromatize dampness, resolve dampness, and regulate qi, which are the positive effects of Huo Xiang Zheng Qi. Huo Xiang Zheng Qi is generally aromatic and warms dampness, it is on the hot side, and most coughs, such as those caused by external influenza or inflammation in the lungs, are not suitable for using Huo Xiang Zheng Qi if the heat phase is the main cause. However, for coughs with phlegm and dampness, and coughs with recurrent thin white phlegm, some doctors will combine Huo Xiang Zheng Qi to dissolve dampness in the spleen and stomach, and at the same time treat the cough with drugs for the lungs.