The dosage of the original formula of Painful Diarrhea Essentials is 3 taels of Atractylodes macrocephala, 2 taels of Paeoniae Alba, 1.5 taels of Pericarpium Citri Reticulatae, and 1 taels of Fenghuang. The dosage unit of each dynasty is different, so the modern dosage should be 9g of Atractylodes macrocephala, 6g of Paeoniae Alba, 4.5g of Pericarpium Citri Reticulatae, and 3g of Fenghuang, and the method of decoction should be decocted in water or taken as pills. Painful Diarrhea is derived from Danxi Xinfa, its effects are to tonify the spleen and soften the liver, dispel dampness and stop diarrhea. It treats diarrhea caused by spleen deficiency and liver depression, with intestinal tinnitus and abdominal pain, diarrhea in stool, abdominal pain after diarrhea, reduction of pain after diarrhea, and the left Guan pulse is stringy while the right Guan pulse is slow as the main points of identification, and it is a representative formula for treating painful diarrhea. Chinese medicine prescription needs to be used under the guidance of TCM doctor’s diagnosis, do not use medicine privately, so as not to cause damage to the organism.