I cultured MRSA in August for the first time and I was told the same thing. They only treat it when it is symptomatic, otherwise they leave it alone. I became symptomatic in October and was put in the hosptial. I did Zyvox and Bactrim for the MRSA and TOBRA IV and Zosyn for Pseduo precautions....The Zyvox I did IV and it kicked butt for me.. though it took two hours to infuse.. which didn't make for fun times on home IVS esp since I had 8 different infusions a day.....I do feel best when I am on Bactrim all the time...even before I knew that I had cultured MRSA for some reason Bactrim always made me feel great..
I have a question.. if your symptoms are under control being on the antibiotic, do you object to staying on them? I have no problem staying on Bactrim... I just feel normal on it... I am not on it right now...but I go on and off it so much...
Also, when I was have a flare up of the MRSA, I have had body aches. (right before) and I did have fevers as well. My dr wasnt worried about me culturing MRSA at all.. as long as I am not having symptoms.. he didn't even blink his eyes at it. I don't culture anything else either.. and as of right now, we believe that the MRSA was irradicated... I am a mild case of CF though... with very good lung function when I am healthy.
Good luck, and I hope you get some answers soon,
Jennifer