Sorry for your trials. Please check out Dr. Sims and Dr. Stacks appliance for Tourette's Syndrome.
I started a thread "Tourette's Cure - Worked for Me" on this site that outlines what it is, and give some links to academic papers and their website.
I have never actually dealt with them directly. An orthodontic specialist in BC, Canada did the appliance for me, and it worked beautifully.
I went from being overwhelmed by tics, to having, nearly, none.