post-operative skin necrosis

Hi everyone!
I haven’t been here for a while, but now I need your support and advice:)
I wanted to get in a really good shape before my 40th bday, so I first lost 5 kg with a diet/exercise, then I went for a dermolipectomy to fix my tummy (as a type II i had a belly, not to mention 2 pregnancies and a hernia) so it was 2 kg in addition, then I lost 5 kg more – 12 in total. Now I love how I look, I have a shape that I had 20 years ago, BUT there is a problem. The scar from the surgery was at least 50 cm long, and a part of it, maybe 15 cm was necrotic, so I had to go to a second surgery to fix that. But it happened again, only much smaller this time, but still, it’s ugly even though absolutely painless…. And I don’t know what to do now, I don’t want to see that doc again, because all he knows is to blame me, as if I’m guilty to be a diabetic? I do try to my best to keep the gluc level OK (it’s usually 6 – 8, which is really the best i can do. It rarely drops below 5 even if i don’t eat anything at all).
So the Q is: is there a good natural remedy or a regular medicine, whatever, to speed up the skin regeneration, epitelization, wound healing, etc… I have tried a number of things like panthenol etc, but it doesn’t seem to do much.
Anyone here that had a similar problem?
Many thanx, and all best in 2010!
srpkinja