Perianal edema is considered to be related to hemorrhoids, anal fissure, perianal inflammation and other disease factors. Can be used externally hemorrhoid cream, compound coriander acid ester cream, dexamethasone ointment, zinc oxide ointment for treatment. 1. Hemorrhoids: Hemorrhoids mainly include internal hemorrhoids, external hemorrhoids, mixed hemorrhoids. Perianal edema is considered to be related to external hemorrhoids. It is recommended to adjust the diet structure, warm water bath, give hemorrhoid cream external application, can improve local blood circulation, promote the dissipation of edema, relieve the symptoms. 2. Anal fissure: long-term constipation, rough stool through the anal opening, resulting in localized fissure. Contamination and stimulation by feces can cause edema. Edema caused by anal fissure, can be given under the guidance of the doctor compound keratocyanate cream, hemorrhoidal ointment coated with anti-inflammatory, swelling, hemostasis, pain relief effect. 3. Perianal inflammation: Perianal inflammation is related to bacterial infection, resulting in localized redness, swelling, itching and pain. Dexamethasone ointment and zinc oxide ointment can be given to reduce local edema, itching and inflammatory reaction. Perianal edema is related to a variety of factors, it is recommended not to blindly use their own medication, you can go to the relevant departments of the hospital, to clarify the cause of the cause to give reasonable treatment.