I know that you may already know these things, but these are some tips from webmd.com
If you have an infection with MRSA, you can keep from spreading the bacteria.
Cover your wound with clean, dry bandages and follow your doctor’s instructions on caring for your wound.
Keep your hands clean. You, your family, and other people with whom you are in close contact should wash their hands frequently with soap and warm water or use an alcohol-based hand sanitizer, especially after changing the bandage or touching the wound.
Do not share towels, washcloths, razors, clothing, or other items that may have had contact with your wound or a bandage. Wash your sheets, towels, and clothes with warm water and detergent and dry them in a hot dryer, if possible.
Keep your environment clean by wiping frequently touched surfaces (such as countertops, doorknobs, and light switches) with a disinfectant
The article also suggests getting other family memebers tested so that everyone gets treated at the same time and you stop the endless cycle of transferring back and forth.