Gui Zhi Tang treats external wind-cold syndrome (a type of syndrome manifested by fever, chills, sweating, weakness, etc.), while Yi Gong San treats spleen and stomach qi deficiency with qi stagnation. The two should not be blindly combined, but for chronic diarrhea belonging to the spleen and stomach qi deficiency, the use of Yi Gong San can play a certain therapeutic role. 1. Gui Zhi Tang: composed of Gui Zhi, Paeoniae Alba, Ginger, Jujube and Glycyrrhiza glabra, it has the efficacy of relieving the muscle and releasing (sweating, etc., so as to make the evil qi trapped in the surface of the muscle to go out), regulating the camping and defending (to make the internal and external qi of the human body to be smooth and to do its own job), and is used for the treatment of wind-cold infection. Headache and fever, sweating and wind, nasal ringing and dry vomiting. 2. Iso Gong San: composed of ginseng, poria, atractylodes, atractylodes macrocephala, tangerine peel, baked licorice, can benefit qi and strengthen the spleen (regulating the qi of the spleen and stomach), move qi and eliminate stagnation, used for the evidence of deficiency of the spleen and stomach qi and stagnation of qi. Reduced diet, loose stools, chest and epigastric congestion and discomfort, or vomiting and diarrhea. For people with chronic diarrhea, it is recommended to seek medical treatment in a timely and positive manner, and use medication under the guidance of a physician to identify the symptoms, rather than blindly preparing or taking Chinese herbal prescriptions on your own.