I need advice.

I have a chemo appointment scheduled for my cat (yes, I know I am posting to
two dog NGs) on Friday.

She had a radical lateral mastectomy on Wed. September 17. Her incision
from the first surgery several weeks before that was slow to heal and this
incision is too. I've removed about 30 of the stitches for her comfort, but
at least 15 are not ready to come out. That area still has open wounds and
red crusts instead of brown. She's on clavamox and a topical antibiotic
ointment, and I have devised a sweater for her out of nylon tights that I
change daily in order to keep her from licking or scratching the wounds
open.

In addition, she picked up the sniffles from somewhere, and is still
congested. She does not have colored mucus, only clear.

Do those of you with experience in chemo (ESPECIALLY VETS OR TECHS)
recommend she needs to defer her first chemo treatment?

I called her oncologist and she told me basically that if she was better it
would be fine. But I don't know how much better she needs to be, or what
the risk is if she is not better. And I'm concerned about the possibility
of chemo interfering with the closure of the wound.

HELP please!