Final answer:
The treatment for mastitis when MRSA infection is suspected includes medications effective against MRSA, such as trimethoprim-sulfamethoxazole, clindamycin, tetracyclines, or linezolid.
Step-by-step explanation:
When MRSA infection is suspected in the treatment of mastitis, medication choice is important. Even before receiving the results of sensitivity analysis, suspected S. aureus infections are often initially treated with drugs known to be effective against MRSA, such as trimethoprim-sulfamethoxazole (TMP/SMZ), clindamycin, a tetracycline (doxycycline or minocycline), or linezolid.