Also enzymes. Nattokinase and Serrapeptase especially can drastically reduce inflammation which can lead to healing and less pain. They also inhibit scar tissue formation and increase collagen formation. Both of which you need. Quercetin and other enzymes do wonders as well.
I personally have not tried Cissus, but the rest I have tried and they all work.
I have a really bad problem with inflammation, blood pooling, and lack of natural scar tissue rebuilding enzymes. I was born with it. I could go into scientific detail about it, but short story like you I tried a ton of doctors and they all said nothing could be done.
Now (along w/ HGH or GHRP/GRHR) I take natural anti-inflammatory medicine and enzymes like Nattokinase and Serrapeptase which inhibit excess scar tissue formation and can actually break down scar tissue. Scar tissue will always be there, but with collagen synthesis the scar tissue can become less pronounced and more flexible and nerves can start to work better again as well as small blood vessels.