The efficacy of Patchouli Zhengqi Oral Liquid is to treat cold and flu symptoms such as distension and pain in the epigastrium (stomach and abdomen) and vomiting caused by summer injury to summer dampness (the human body is susceptible to the invasion of summer heat and dampness in the summer), and exogenous wind-cold. Huo Xiang Zheng Qi Oral Liquid is composed of Chen Pi, Poria, Dabu Pi, Angelica dahurica, Perilla leaf oil, Patchouli oil, Hou Pu, Cangzhu, Licorice, etc. It has the effects of harmonizing the middle, regulating the qi, resolving the dampness, and relieving the epidermis. Generally speaking, Huo Xiang Zheng Qi Oral Liquid can be used to treat colds and flu caused by summer injury of summer dampness, external wind-cold infection, internal dampness stagnation (the stagnation of dampness in the body caused by too cold diet, etc.), etc. The above mentioned diseases often lead to the stagnation of dampness in the body. The above diseases often cause distension and pain in the stomach and abdomen (abdominal distension, abdominal pain), vomiting, diarrhea (diarrhea), headache, dizziness, chest and diaphragm plagued (tightness in the chest, stomach stuffiness) and other symptoms. It is recommended that patients need to use Huo Xiang Zheng Qi Oral Liquid under the guidance of a doctor, and should not be treated with medication without authorization. In addition, those who are allergic to the ingredients of Huo Xiang Zheng Qi Oral Liquid are forbidden to take Huo Xiang Zheng Qi Oral Liquid.