Acute gastroenteritis belongs to the category of diarrhea and dysentery in Chinese medicine. If gastrointestinal cold (diarrhea, dysentery) is caused by wind-cold and summer dampness (summer heat and dampness), it can be treated with Huo Xiang Zheng Qi Sui (藿香正气水). Huo Xiang Zheng Qi Shui is a proprietary Chinese medicine, which has the functions of relieving the surface and resolving dampness (relieving the evils of external sensation and getting rid of dampness in the body), regulating qi and neutralizing the middle (regulating the qi of the spleen and stomach, so as to make the functions of the spleen and stomach smooth). This drug is mainly used for treating colds and flu caused by external wind-cold and summer dampness, such as headache, lumpiness, epigastric distension, diarrhea, and gastrointestinal colds and flu. Adverse effects of the drug include nausea, rash, dizziness, palpitations, etc. Note that it is forbidden for those who are allergic to this product and those who are allergic to alcohol. Avoid smoking, alcohol and greasy food during the administration of the drug. From the drug description of this product, Huo Xiang Zheng Qi Shui only has a therapeutic effect on gastrointestinal colds caused by external wind-cold, summer injury and summer dampness. If you need to use the drug is recommended to be used under the guidance of a traditional Chinese medicine practitioner to identify the evidence, unauthorized use of drugs may cause adverse consequences.