The first thing to do is to go to the hospital and have blood tests for a month to check whether there is anemia, if there is anemia to be corrected. You can take Yunnan Baiyao and Sophora pill orally, apply nitroglycerin ointment to the perianal area, put tylenol plugs in the anus, fumigate with 1:5000 potassium permanganate or Chinese medicine solution, take a sitz bath, keep the bowels open and prevent constipation. Anal fissures are often caused by constipation, constipation can lead to anal skin fissures, anal fissures do not heal over time, fecal stimulation fissures when defecating will produce bleeding, anal fissures blood on the paper with blood or dripping blood, rarely heavy bleeding. In daily life, eat less spicy and irritating food such as chili peppers, need to avoid alcohol and keep the area around the anus clean and hygienic.