To clean the foreskin with povidone-iodine, you can first wash it with saline, then dip a clean gauze or cotton swab in povidone-iodine and apply it directly to the wound area of the foreskin. The long foreskin can easily lead to phimosis, glans and so on, can be treated by circumcision surgery, after the treatment, it is recommended to use povidone-iodine to sterilize the foreskin, to prevent the wound site from infection, and after the surgery, we should also try to keep the wound site as dry and clean as possible. First use saline to clean the foreskin, and then use a cotton swab dipped in povidone-iodine to disinfect, which can play a certain role in preventing infection of the wound area, it is recommended to clean once a day in the morning and once at night. The correct use of iodophor to clean the foreskin, the speed of wound healing will also be shortened, about 7 days after circumcision, the wound can be healed, it is recommended to go to the hospital on a regular basis for re-examination.