If the acute gastroenteritis is caused by cold stimuli, such as changes in the weather and spending too much time in air-conditioned rooms, and there are adverse manifestations such as nausea, vomiting and diarrhea, you can take patchouli water. Because the ingredients in Huo Xiang Zheng Qi Shui have the effect of stopping diarrhea, relieving nausea and relieving vomiting, it can effectively relieve the above symptoms. If the patient’s acute gastroenteritis is caused by the consumption of unclean food and bacterial gastroenteritis caused by E. coli or Salmonella, Huo Xiang Zheng Qi Shui can only be used as an aid to relieve the symptoms and, if necessary, to treat the symptoms with sensitive antibiotics and rehydration. Therefore, in the clinical treatment of acute gastroenteritis must be clearly distinguished from the cause and choose the right treatment method.