I was diagnosed with cellulitis on 1/29/10 and have been on the generics for Keflex and Bactrim DS since that time, today is 3/2/10. The infection started in my right leg and they put me off work a week at a time with the exception of 2 days a week that I worked graveyard with little standing. The infection would start clearing up and then I'd work those 2 days and it would get worse again it has now gone into my bladder and kidneys and started in the left leg. Is it possible that this is caused by mold or mildew? I work in a hotel that has a lot of water damage in the ceiling and walls that never gets fixed. My doctor said it is not possible, but it is just strange how it gets worse when I go to work.