The antibacterial agent which can be used intranasally as the prophylaxis against recurrent S.aureus infection is:
Mupirocin is a simple agent which can be used intranasally as prophylaxis against S.aureus. Ref: Harrisons Edition-18, Page : 1148, Table-133/9.
Cefazolin
Mupirocin
Gentamicin
Moxifloxacin