D.W.
Our daughter was diagnosed with MRSA in May, she was just past her 2nd birthday then.
What antibiotic did they prescribe? Bactram and Bactroban. Bactram is oral, Bactroban is topical. We only used Bactroban, and she's doing fine now. She still has a scar from the infection, but she's OK.
MRSA is much more common than most people realize, and the name is scary. Most cases are easily treated, and there's little reason to believe he won't have a full response to the antibiotics. Just pay close attention to it, keep it covered, and call your pediatrician if anything begins to get worse.
Here's what the American Academy of Pediatrics recommends:
http://www.healthychildren.org/English/health-issues/cond...