Ive had staph twice (MSRA). You must have waited a long time before getting it treated for it to look like that. I got it from the gym, which is where alot of people get it from. Good luck with it!
i havent even started goin to the gym yet, i was just bout to start. and i waited like 3 days. at one point while in the hospital it actually moved up to my elbow but then started coming back down once the antibiotics started working