###Human: When can I expect the red rash near penis to cure completely? ###Assistant: Hi. Mupirocin is a topical antibiotic. It has to be used twice a day for two weeks for infectious conditions like impetigo. Also, it depends on the extent of involvement and severity. Since I have not seen the rash, I cannot really tell you how much time it can take to heal the rash. Please attach your clinical picture so that I can see and make a diagnosis that helps me to comment further.