[Tinker]

Depending on severity, there are options other than getting all drugged up. My wife has dystonia which makes her neck muscles contract uncontrollably pulling her head backwards
and receives botox shots in her neck every three months. Much better than being in a drug induced fog and she has had great success with it.
I wish your daughter well, better days will come. Just make sure you find a doctor that is capable and that you trust. It took us a while, but makes all the difference in the world.