During circumcision, edema can occur after the operation because the blood vessels and lymphatic vessels at the foreskin will be damaged, resulting in obstruction of blood and lymphatic return. Patients with obvious edema can be given relevant medication, such as potassium permanganate liquid sitz bath, magnesium sulfate hot and wet compresses, etc. Edema caused by infection can be given amoxicillin and other antibacterial drugs. 1. Edema caused by reflux obstruction: mild edema can be gradually recovered on its own, serious edema can use potassium permanganate liquid bath, each time for 5-10 minutes; can also be edema parts of the magnesium sulfate hot and humid compresses, which will help the edema subside. 2. Edema caused by bacterial infection: some patients with improper postoperative care at the incision can also lead to edema at the incision, mostly accompanied by redness, swelling, heat and pain, and need to be given antibacterial drugs for treatment, such as oral amoxicillin, etc., and can also be used locally with erythromycin ointment and other topical antibacterial drugs. The concentration of potassium permanganate liquid is 1:5000, do not be too high concentration and damage to the skin, allergic to the drug is prohibited. Magnesium sulfate wet heat compresses need to be equipped with 30% magnesium sulfate, the temperature is about 40 degrees, and those who are allergic to the drug are prohibited. It is recommended that patients go to the hospital, improve the auxiliary examination to clarify the cause of edema, the professional physician for treatment, the drug needs to be used under the guidance of a professional physician.