My wife Linda was diagnosed 4 years ago with Psp, she is wheelchair bound, with no use of her arms or hands, currently is extremely stiff and the muscle relaxer (baclofen) has no or little effect on her stiffness. Tremor on upper body becoming more and more noticeable. Her biggest complaint is her head is being pulled back in pain. Has anyone had botox applied to the neck to relieve this condition? I would appreciate any information. Baby one can share.