I will reiterate as others have, STAY ON TOP OF THIS!!!! My BIL had something like this start several years ago and has been in and out of hospital with it, (they thought it was initially a spider bite but never have pinpointed WHAT EXACTLY it is) They thought more recently it was MRSA but after having to finally amputate his left great toe, they STILL don't know what it is!! Please be careful He now has problems in BOTH feet and they have no idea what they are dealing with, but is rehabbing from the amputation and trying to keep it from further spreading still in both feet.