Had MRSA on the back of my right thigh badly, and mildly on my left. Sorry for the racism, but quite frankly I place full blame on the [-ahem-] visa workers in my building and their culture's absolutely fucking disgusting hygiene standards.
I wouldn't be surprised if it were MRSA, though there are too many signs I'm familiar with that suggest it's literally just a hair.
Because it's BL and there's not really such thing as TMI - this has been occurring on and off for a VERY VERY LONG TIME at this site. Somewhere around a year, or more. I've had one round of cephalexin ages ago that cleared it up, but quite obviously that doesn't remove the cause. The site I KNOW it all began at is just below my balls on the left hand side (so actually in the groin, but more to the left). At its worst, I've drained the effective cyst at a point ACTUALLY on my scrotum, roughly 1.5 inches from the site of origin. It's been almost as big as a golf ball at one point.
And now after 1.5 courses of antibiotics (frankly I refuse to take any more until they've actually fucking done something about this surgically) it's flaring up again, more prominently at the site of origin.
My next appointment with the doctor on this issue will involve me making very clear demands for action or referral to someone who will, else they will absolutely not be receiving any payment for the appointment.
At this point, if it's been steadily growing since it first became ingrown, we're probably looking at something like 6" long by now. This shit's fucked up.