Hi, I have not been on here for a long time. My son has been doing pretty good with an gfcf , no eggs., no artificial diet and supplements. He still had minor motor tics, but not really an issues. My son has had a coughing tic now for a few weeks. I was hoping it would go away but it's not. Just wondering what others have tried to help the coughing tic-supplements? Should I try l-carntine? If so how much? My son is doing the coughing tic, every two mins. I don't know how he can go back to school like this. I am very stressed. My son has never had this before. Please Any suggestions?