Post-op Cellulitis

Please give me some advice. My husband had a right total knee replacement in early August. The first time the dressing came off, the incision looked great (I never thought to look at the bottom part of his leg). His leg was rewrapped with the ace bandage. The next day, three severe blisters had formed on the medial aspect of the lower leg (mid-shin down to ankle). The dressing was left off. These blisters grew to about the size of tennis balls, and the next day the surgeon "wiped" one, the skin ruptured, the other two were left alone to hopefully go down.

To make a long story short, he was diagnosed with cellulitis. We have done many runs of different types of antibiotics. We finally have the wounds closed, but the bottom of the leg is very painful, still discolored, still swollen even though that leg is now smaller than the left. After going back to the GP doc Monday he was given the boot. They told him to contact an internist and was given a RX for an antibiotic again. (That internist can't see him until towards the end of November.)

What in the world should I do? I'm at my wits end! HELP, PLEASE.

THANK YOU.