hi trylady and welcome
I know of a number of kids whose tics have resolved once the dietary allergens are removed so hope you will see much improvement for your child
we have been on a natural treatment protocol (healthy diet free of artificial additives, specific supplements, acupuncture, chiropracty etc) for 8 years and my son is doing so much better than when he was on medications for his tics and OCD
have you heard of the book by Sheila Rogers
Tics and Tourette’s: Breakthrough Discoveries in Natural Treatments
It is an excellent reference, with research information,on alternative ways to help with TS
Sheila has also written a helpful article on
Finding Triggers for Tics that followed an informal survey
You will see that food & environmental allergens seem to be a big trigger for many!
I have a thread here documenting what we did to help my son's TS go from very severe to relatively mild with natural treatments
http://neurotalk.psychcentral.com/thread1145.html
I look forward to hearing your feedback on how dietary modifications are helping your child! I think you will see a big difference