In addition to what you are already doing, I suggest:
Take large doses of oregano oil internally. Dilute it in olive oil, as it tastes horrible.
Keep warm all of the time, and heat the infected area. For example, you may put a hot water bottle on it, and wrap the whole thing in a blanket. Use whatever method is easiest for you. Don't let it get cold.
Some Golden staph infections cannot be killed without the area being warm.
I would be interested to know: Where is the infection on the body? How large is it?