Suggest Treatment For Fluid Retention In The Incision Area Post Hysterecyomy

I had a hysterecyomy 7 weeks ago to remove a baseball size mass, so ovaries & tubes where also removed uterus had been removed about 13 years ago.. then I had bleeding internally and a 2nd surgery to drain & left a drain for 15 days. I still have some fluid above the incision & at times tender to the touch? Dr. recommended moist heat to help with fluid retention? I also wore a abdominal binder constantly until 5 weeks out..then wore only at night, have not worn in the last 4 nights. I had no swelling in stomach before surgery....did not even know I had anything wrong...found thru normal check up! See my Dr in a few days for post surgery check up. Any thing else I can do.
Had no clue I had to pay....thanks but no thanks!