Hi. Thanks for posting your concern at HCM
Boils/Furuncle at this site can be extremely painful.
If I was you treating doctor I would have put her on oral antibiotics
(penicillin group e.g Amoxycillin
in combination with Clavulanic acid
, 625 mg, thrice daily for a week).
An OTC topical antibacterial like 2% Mupirocin cream or ointment can be applied twice daily over the boil.
An OTC pain killer e.g Ibuprofen or Diclofenac
can be taken orally to relieve the pain and discomfort.