There was a guy on here yrs ago named zyglamail or something very similar to that. I think he still posts sometimes, but he has 1st hand info on it. I've heard nothing but great things if you can find a clinic that does it nearby.
Injuries are injected with lidocane and saline. The body sees this as irritation and rushes healing chems to the site.
Works for tendon and ligament injuries and muscles.