The numbness two three inches above my FUT incision , lasted 4 or 5 months. The numbess up on my crown, I didn't have any work done there but I guess the nerves got affected, lasted about 8 or 9 months. I occasionally would get a very sharp quick shot of pain. like somebody stabbed me with a needle. I just assumbed that was the nerves growing back together. That hasn't happened in six or seven months now. I'm 17 months post op.