The prescription consists of Mume 10g, Asarum 5g, Zingiberis Rhizoma 5g, Coptidis Rhizoma 8g, Radix Angelicae Sinensis 10g, Radix Aconiti Lateralis lateralis preparata 5g, Fructus Piperis 5g, Ramulus Cinnamomi 6g, Ginseng 6g, and Cortex Phellodendri 6g. Atractylodis Macrocephalae 10g and Semen Lablab album 20g； can be added for patients with obvious spleen deficiency symptoms. If the kidney-yang deficiency is serious, the dosage of aconite will be aggravated; For patients with severe heat, Scutellaria baicalensis Georgi 10g and Pueraria lobata 20g are added to reduce the dosage of dried ginger and aconite; For patients with purulent blood in stool, Sanguisorba charcoal 15g and areca nut 6g are added; Paeonia lactiflora15g for patients with abdominal pain; For those with sour feces, malt 15g and medicated leaven15g are added; Crataegus pinnatifida 15. daily 1 dose, decocted in water, 12 days is 1 course of treatment.

Chronic diarrhea is found in many diseases, such as chronic bacillary dysentery, chronic amoebic enteritis, ulcerative colitis, irritable bowel syndrome, functional diarrhea and malabsorption syndrome. For some of the above infectious diarrhea, Western medicine can obtain satisfactory curative effect by choosing effective antibiotics, while for some non-infectious diarrhea, because it is the result of a variety of reasons, Western medicine has no satisfactory treatment. For this kind of diarrhea, it is common to have a dull complexion, listlessness, fatigue and weakness, and even cold limbs, thin body, diarrhea in the morning or after eating. Or manifested as depression and anger, or diarrhea when emotional tension occurs. These symptoms are caused by weakness of spleen and stomach, deficiency of kidney yang, and stagnation of liver due to spleen.

Wumei decoction, which originated from Treatise on Febrile Diseases, has the function of warming viscera and calming the cramps, and is mainly used to treat cramps with upper heat and lower cold. The main points of clinical treatment are abdominal pain, boredom and vomiting, frequent vomiting of cramps, and cold limbs. Prolonged diarrhea and dysentery are mixed with cold and heat, and can also be used for those with weak vital qi.

Article 242 of Treatise on Febrile Diseases says: "For those who have syncope, Wumei Pill governs it and chronic dysentery." According to the prescription of Wumei Pill, the main medicine, Mumei, tastes sour and enters the liver meridian, which can astringent the intestine and stop diarrhea; Coptidis Rhizoma and Cortex Phellodendri with bitter cold can clear away heat and dry dampness to stop dysentery; Radix Aconiti Lateralis Preparata, Rhizoma Zingiberis, Ramulus Cinnamomi, Fructus Zanthoxyli, and Herba Asari are all warm products, which can warm the kidney and spleen and help transport, and can also soothe the liver qi, so as to prevent the liver qi from taking advantage of the spleen; Ginseng and angelica tonify qi and blood to strengthen the body resistance. The combination of all kinds of medicines has the functions of warming the middle warmer, tonifying deficiency, clearing away heat, drying dampness and stopping dysentery, and can achieve good effects on chronic diarrhea with mixed cold and heat and weak healthy qi.