I take ghinko biloba which helps a lot and vitamin C. The vitamin is to ward off disease because I'm scared silly of getting a cold. I take 250mg of grape seed extract every three days (two days after a new injury) to slow down the spread. I'm not sure spread is so bad but can't believe it's good and it seems largely irrevrsible.

My doctor has me trying a new one (butter bur) but it's too early to be sure. It affects the pain, I believe, but I'm not certain yet that the affect is positive.

Some vitamins (like E or massive B12) have proven hurtful. Go with what works and try to start things one at a time.