I'd say it was the combo of meds. Although you're on a lot of antibiotics.

Sadly, I have stopped getting pedicures at nail salons. There were way too many stories on the news and that I heard from friends of infections that were very resistant to antibiotics. Some of these folks lost hands, feet and limbs. Apparently, even though the salons cleaned the foot bath tubs they weren't killing the germs that could get into your bloodstream through just a tiny nick in the skin. Scary!