A couple of quick thoughts:
- suggest culturing milk next time this recurs, rather than guessing
which antibiotic ( I would stick to Keflex rather than Augmentin or
Vancomcyin)
 - with problems in outer breast, has she been positioning baby under her
arm? Sometimes feeding this way will improve drainage of outer breast
because of jaw and tongue action. When women get recurrent blockages in
outer breast, I suggest positioning baby under the arm regularly, eg
every morning to try to prevent recurrence.
- if quering an abscess, a diagnostic ultrasound will confirm or rule
out. I have found that the radiologist may be happy to aspirate the
abscess under ultrasound control - which saves a lot of hassles.

Lisa Amir
GP and IBCLC in Melbourne, Australia