I believe that we are not strangers to anal fissure, and the treatment of anal fissure is only two ways. Generally speaking, for patients with anal fissure in the early stage, conservative treatment can be carried out under the guidance of doctors, such as adjusting dietary habits at home, improving the character of stools by drinking more water and other measures, local anti-inflammatory medicine sitz baths, and if the combination is constipated, laxatives can be used to help defecation and so on. 2. Chronic stage can be treated by means of local anti-inflammatory medicine sitz baths, adjusting diets, changing the character of stools, and expanding the anus and so on. 3. Patients, or the above patients for a long time should go to the hospital to receive treatment. However, today we are going to introduce to you a kind of sharp weapon – a special method to deal with anal fissure, perianal drug injection. As the name suggests, it is a drug injection in the perianal fissure. Generally, perianal injections include danshen injections, methylene blue, etc. (different doctors choose different drugs for injection according to their experience), which are mixed and injected into the muscle layer at the base of the anal fissure and the surrounding tissues. What is the principle of perianal drug injection? This approach is extremely effective for patients with early anal fissure. And Compound Danshen Injection has the ability to invigorate blood circulation, dissipate blood stasis, promote tissue repair, dilate blood vessels, improve local blood circulation, and increase local blood perfusion. It promotes the healing of fissure to a great extent and eliminates the pain of surgery.