Suggest Treatment For MRSA In Ear

HI I AM DUE TO GO INTO HOSPITAL IN A COUPLE OF WEEKS FOR A MASTOIDECTOMY ON MY LEFT EAR, I HAVE ALSO TESTED POSITIVE FOR MRSA IN THE EAR, I HAVE A HOLE AT THE BACK OF MY EAR ALSO, THE PUS COMES OUT MY ACTUAL EAR HOLE AND THE ONE AT THE BACK, I HAVE BEEN LIKE THIS FOR ALMOST 2 YEARS NOW AND BEEN ON EVERY ANTIBIOTIC GOING DURING THAT TIME, THEY HAVE FINALY DECIDED TO REMOVE EVERYTHING, MY WORRY IS THAT BECAUSE OF THE MRSA ONCE THEY CUT ME OPEN IS IT POSSIBLE FOR THE INFECTION TO MINGLE WITH THE BLOOD THAT WILL BE THERE BECAUSE OF THE CUT AND BONE THEY HAVE TO REMOVE? I WAS ALSO DIAGNOSED WITH ADENOID CYSTIC CARCINOMA 12 YEARS AGO DO YOU THINK THIS COULD BE THE ACC COME BACK AS NO ONE HAS CHECKED FOR THAT, SORRY MY QUESTION IS A LITTLE LONG WINDED. HOPE YOU CAN HELP.