MERSA ~ boil ~ HELL

I live in a college Dorm room, i have a very clean dorm room on every table u will find anti bacterial hand cleaner,. and bleach an clorox's wipes in bathroom n in kitchen as well as new clean sheets and pillow cases. Yet, some how I'm still getting infections n the doctor now calling it MERSA! Can anyone tell me how I am getting this> and how do i stop it!!! i don't want it, they hurt and I'm in pain ...and on so many prescriptions...I just want this to end!!!!

HELP HELP HELP HELP