Re-Occurring Cellulitous

Has any one here had any experience with cellulitous after radiation and chemo? My wife had surgery to remove Bartholins gland and lymph nodes in both sides in her groin and illiac region. She had 28 rounds of pelvic radiation, She got cellulitous three weeks after surgery but it was attributed to her JP drains. We got it again in May. Then on the 28th of September, the 27th of October, and again on the 27th of November. This last time, the blood culture came back that she has a staph infection also. Her oncologist doesn't really want to do much since it isn't cancer and her primary care doc doesbt want to treat because he feels it is a result of treatments. Any help would be appreciated.