Pharmacology Anterior nares is the most common site of colonization in carrier state of MRSA. What is the best treatment? A Topical mupirocin B Oral Vancomycin C Inhaled colistin D IV cefazolin 💡 Explanation Anterior nares is the most common site of colonization in carrier state of MRSA. What is the best treatment? ✓ Correct Answer: A. Topical mupirocin