Nerve pain due to a car accident recently flared up, is a doctor worth it?

I had a car accident in 2003, and ever since then I had on and off pain just above my ankle, but now it is getting a lot worse. I can't wear long socks, and it hurts almost all the time instead of 4-6 times a year. However, my oral surgeon mentioned that painkillers didn't really help nerve pain (when I asked about it because of my nerves in my jaw stitching back together.) What would a doctor do to help this?