When my dizziness showed no sign of improvement, actually worsened 3 months post-op (now one year today post-op), Dr. Hain in Chicago (dizzy/balance expert) put me on Klonopin. It has given me some of my life back. It is addictive, and going off suddenly is not a good experience.
I've heard 2 mg of Valium three times a day can help for balance--this came from Phyl/Ppearl, as Kilroy said. Valium made me worse/more off kilter.
Either way, see what your doc says about Klonopin. Frankly, I don't care if it's addictive, if it helps one function when exercises and all other types of "retraining" don't work first....when we are this "far out", I think relief is very appropriate.
My 2 cents.
Nan (Dizzy Diva)