That, sadly, is completely false...
MRSA (Methicillin Resistant Staph Aureus) was, until a couple of years ago, primarily a hospital-acquired infection...
It has leaped into the community in the past ~three years in a BIG way. So much so that virtually all skin abscesses seen from the community are, in fact, MRSA! We treat every cutaneous abscess as MRSA in my ER practice.
As to the question posed by the thread, I don't know of any particular topical treatment that will act in the fashion you describe.
Honey has long been recommended as a topical antiseptic. IIRC, it is largely due to the hypertonic nature of honey. BUT, be warned that spore forming bacteria can be found in honey (Clostridiun botulinum, specifically) and can cause illness. This is why children under the age of one year old should not be given honey!
Wive's tale? Urban legend?! Not on your life! I've seen a case of Botulism in an infant here in the CONUS resulting from honey ingestion. (Infant's digestive system won't destroy the spores for reasons that currently escape me...)
That said, if I were in the sticks and needed to treat a wound and all I had was honey, I'd do it...
Interesting thread...
MP