Hello and welcome to healthcaremagic
I have gone through your concern and I have understood it.
Recurrent boils/infection around the nose area is common in people who are nasal carriers of staph aureus.
In such cases apart from a course of an oral antibiotic it is necessary to eradicate carrier state, so as to prevent recurrence.
If I was the treating doctor I would have advised an empirical oral antibiotic for a week OR 10 days (My choice of oral antibiotic would have been
Amoxycillin 500mg in combination with
clavulanic acid 125 mg, thrice daily, for a week OR
Cephalexin 500ng thrice daily OR
Cefadroxil 500mg twice daily, for a week). That would take care of the infection.
An OTC topical antibacterial e.g 2%
mupirocin ointment can be applied, twice daily just inside the nares/vestibule for 5 days to eradicate carrier state.
regards