What Does Rare Mixed Skin Flora Observed In A Wound Culture Mean For An Internal Abdominal Abscess After A C-section?

I ve had an internal abdominal abscess since the birth of my son via c section. I ve been seeing my OB. We ve tried over 12 round of antibiotics and it keeps getting bigger. Recently I got a would culture done that came back reading rare Mixed skin flora observed . What could this mean?