Hi Lisa, I have the same spasm of my hands and feet and it IS horrible
I am now on Baclofan and Clonazepam which help heaps the dystonia heaps. I have whole body clonic spasms and have my baclofan through my intrathecal pump and it has been a godsend.
I also visit a hand therapist who ever so gently coaxes my hands out of the claw effect!
Wishing you luck