When changing the medication for circumcision, you can use Ravnol for changing the medication, or you can use iodophor solution for local changing, whose medications are disinfectant and antiseptic, or you can use anti-infection ointment, or anti-infection medications for changing the medication, such as erythromycin ointment, or gentamicin and other medications for changing the medication, but only when the presence of local infection is confirmed, you can use anti-infection ointment for changing the medication. If it is just a routine dressing change, you can use the daily antiseptic dressing change. The main purpose of the dressing change is to observe the growth of the wound, whether it is healing well, whether there is localized dehiscence, and to check for signs of infection. The purpose of the dressing change is to detect the signs of infection early and to treat them early. If local redness or pus discharge is found, local disinfection should be performed while removing the pus discharge, and then anti-infective medication should be applied to the wound to inhibit bacterial growth and control the infection. All these need to be done by a professional doctor, and regular dressing changes will help the wound heal.