You can also rub magnesium oil or a lotion on the bottoms of his feet before bed. It works some for me. I inherited a tic disorder from my father. Mostly facial, which gives me raging headaches, but occasional neck/shoulder tics and hand twitches. If someone says something, I just tell them straight that I have some tics and I got them from my dad. Nobody has really cared yet. Mostly they just say, "Oh, ok " and that's that. But try the magnesium on his feet. It certainly can't hurt!