Be extremely careful about personal hygiene.
Application of antiseptic washes may help prevent recurrences. A topical antibiotic cream,
mupirocin (Bactroban®), has been effective at reducing bacterial colonization in the nostrils. It is applied twice daily for a week and is repeated every 6 months. After the lesions have healed you could try waxing.
Let us know if you need any other information and consult a skin specialist if the lesion is persistent.
Regards.