Hello dear , I read and understand your concern. I am Dr Arun Tank, infectious disease specialist answering your concern. MRSA or methicillin resistant staphylococcus aureus is a very notorious bug known for its resistant. It is clear that you are clear from the infection now in your foot. But it wont gone form your body. In future you may receive infection form this bugs once the circumstances becomes favorable for it. You current practice for dressing and cleaning are good and you should continue with it. Even medication prescribed by them are right and appropriate. Avoid using house hold with your home living person. things like towels napkins and others should be avoided to share with. you can use mupirocin ointment to clear MRSA from the site like axilla, groin umbilicus and nasal septum. culture swab taken from it. if the report shows negative results for the MRSA than you are clear from it other wise extended therapy should be taken and re swabbing should be done and tested accordingly. You can ask me for further clarification here or you can ask me on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious Disease Specialist