I recently started using yellow root. I suffered from lower back pain and pelvic area pain generating at times down my right thigh. Each step was difficult. I think I know what the problem is, but the VA tells me little, other than elevated PSA around 8-19. After two 4 oz doses of yellow root, MIXed as its terrible, The pain stopped on the second day almost instantly, I was perspirering however at the time. But was pain free for over two hours and able to walk with a fast step, painless.