Enema therapy, also known as rectal drug delivery method, is a unique therapy developed on the basis of inheriting the traditional rectal drug delivery method of Chinese medicine and combining modern enema technology and Chinese medicine diagnosis and treatment. According to the theory of TCM, the lung and the large intestine are in close proximity to each other. After the rectum absorbs the medicine, it is transmitted to the lung through the meridians and then distributed to the whole body through the propagation of the lung, thus achieving the purpose of treatment. Under the guidance of the basic theory of Chinese medicine, the four diagnoses are combined to identify and treat the symptoms, and the prescription of enema is prepared and the decoction of enema liquid Chinese medicine is used, the liquid volume is 100ml, the temperature is controlled at 39-40 degrees, and the enema liquid is filled into the infusion bottle. Arrange the position according to the condition, if the lesion is in the sigmoid colon and rectum, take the left side lying position. Hang the enema on the infusion rack with the liquid surface higher than the anus, less than 30 cm, lubricate the catheter and insert it through the anus to retain the enema and try to retain the medicine without overflowing. Modern medical research: the rectal mucosa has strong blood circulation and strong absorption capacity. After the drug is absorbed through the rectum, one is through the middle rectal vein, inferior vein and anal canal vein, bypassing the liver and entering the large circulation directly, which not only prevents and reduces the change of the drug in the liver, but also avoids the influence of the stomach and small intestine on the drug; the second is through the superior rectal vein, entering the liver through the portal vein after metabolism, and then circulating to the whole body; the third is through the rectal lymphatic system after absorption, entering the celiac pond and thoracic duct through the blood circulation. This shows that rectal drip administration is conducive to drug therapy, and also highlights the characteristics of TCM evidence-based treatment. I. Indications 1, acute phase of stroke (phlegm-heat internal organs) 2, various chronic dysentery, colitis, and high temperature cooling 3, chronic colitis, including: part of the infectious colitis, ulcerative colitis and mild non-pathogenic infection of the colon inflammation, such as radioactive colitis, pseudomembranous colitis, etc. 4, chronic pelvic inflammation, chronic pelvic pain, pelvic stasis syndrome, tubal obstructive infertility, dysmenorrhea, etc. 5. Chronic renal insufficiency 2. Contraindications Acute abdomen, intestinal surgery, intestinal typhoid, serious cardiac and cerebral disorders 3. The drug does not pass through the stomach, avoiding the influence of gastric acid and other digestive juices on the drug, which not only solves the difficulties of patients in taking the drug, but also gives full play to the drug effect and reduces the stimulation of the upper digestive tract. This method allows the drug enema to reach the disease directly, which is more effective and less likely to recur, and can reduce gastrointestinal side effects.