The first and most commonly used medicine for gastrointestinal colds is Huo Xiang Zheng Qi Wan; the second is Bao Diao Wan; the third is Bao He Wan, which are very effective for gastrointestinal colds. There are relatively few finished medicines, especially those for clearing heat and dampness, which basically no one has ever used. Therefore, we can only use the existing prescriptions for addition and subtraction, such as Ginseng and Atractylodes or Huo Xiang Zheng Qi, which are more warm and dry. For cold and damp type of cold and damp type of diarrhea is better. But if there is warm and dry, and there is heat in the intestines, several herbs must be prescribed, such as Scutellaria baicalensis, Cottonwood, Fire charcoal mother and Plantain, and other medicines to clear heat with it to be effective. Because there are many types of colds, different seasons feel different viruses and the nature of the disease evil is different. So some people tend to add dampness and have bad intestinal tract. The so-called gastrointestinal type of cold, some people belong to the Yin deficiency internal heat, dry cough without phlegm, sore throat, etc., buy their own medicine to eat, sometimes they will buy the wrong medicine, eat the wrong medicine. So it is best to go to the hospital and let the doctor identify whether it is a damp-heat type cold, gastrointestinal type cold, or a yin-deficiency internal heat type cold, and what medicine to use in different seasons, so the doctor will know.