The MRSA infection that I got after my thigh revision made itself known almost immediately. I was on abx - clindamycian, and after a seroma that developed in my thigh was aspirated, I came down with a huge MRSA abscess in my leg. It was red, painful, swollen, the infection was going up my leg, and within 24 hours after draining, had gone from my knee all the way up to mid thigh. If you truly have an active MRSA infection, it will show up in the culture of the skin and any ooze from your skin.
Since you have already had MRSA, you are probably colonized with it, and it might be a more minor reaction -- you need to remind them that you have had MRSA and that you want to be tested for it. When I had to have another surgery after my MRSA infection, I was put on IV vanco for 24 hours before the procedure and 24 hours following just to be sure that I wouldn't develop a bone infection.
It is always best to remind and remind your health care professionals that you might have an extenuading cir****tance and that they need to think of a zebra instead of a horse when they hear hoof beats!
Jennie

31 lbs lost before surgery