How do you deal with wounds in or around the radiation fields?

Agree with @Dr. First Last completely. As another example, a slowly healing drain or mastectomy wound that remains open during chemotherapy will often close during radiation, despite being within field. I monitor and continue standard wound care, but do not change my treatment fields.

It is not unusal to have a sterile abscess in these patients if they have perinal sinus. Once an active infection is ruled out or treated, I would treat with RT as otherwise planned and have done so in few patinets without any major healing issues.