Your welcome, LAF. Also, if your son is having tics, one thing that seems to help a lot is magnesium. I have both of my sons take a magnesium salt bath at least three times a week. (I use san fransisco Epsom salt). One was having nervous tics and they completely stopped within one week of starting the baths. They have not come back and it's been a year now. You can give magnesium supplements but I like the baths because the body will absorb the magnesium through the skin and will only absorbed as much as it needs so I don't have to worry about his getting too much or too little. But I have heard good things about the supplements too. For the bath, I put a little over 2 cups (measured with a measuring cup) on bath water and have him stay in the bath for 15 minutes. It is a good mineral that many of us and many children are deficient in.