Used for diarrhea, clearing heat and other bitter and cold type and nourishing and greasy Chinese medicine is easy to hurt the stomach, clinical application should pay attention to the protection of stomach qi. 1. Diarrhea-type medicines: Chinese medicines with strong diarrhea and attacking power (to make the body expel evil qi through diarrhea), such as rhubarb, mangosteen, senna, crotonia, gansui, etc., may damage the stomach qi when used in large quantities. 2. Heat-clearing medicines: heat-clearing medicines such as scutellaria, Huanglian, cypress, honeysuckle, gypsum, etc. are cold and cold in nature, and too much of them may also damage the stomach qi. 3. Nourishing and greasy medicines: Nourishing Chinese medicines such as Colla Corii Asini, Radix Rehmanniae Praeparata, Tortoise Plate, Turtle Shell, Deer Antler, etc. may hinder the normal elevation of gastric qi, thus injuring the stomach. Clinically, when using a large amount of the above herbs, attention should be paid to the protection of stomach qi, increase the number of stomach tonic herbs such as dried ginger, jujube, atractylodes macrocephala, pericarpium Citri Reticulatae, etc. in order to prevent damage to the stomach qi, resulting in gastric and epigastric discomforts, and attention should be paid to the use of the medication, try to arrange for stomach-taxing herbs to be taken after meals. Since the use of the above drugs may hurt the stomach, it is recommended not to self-medicate, and the specific use of drugs need to follow the doctor’s instructions.