My son,Michael, is 5 1/2 years old. He is mildly Autistic. He has started to recently chew on the neckline of his shirts and sometimes on his jeans or shorts. He chews on his clothing constantly and the garment will become drenched. He chews more on his clothing if he is not playing on the computer or playing a video game. I have tried giving him other things to chew but it doesn't help at all. He has had some OCD issues before (i.e. constantly rubbing his groin area until he falls asleep..he only does this if he experiences changes in school, or gets over excited)His developmental pediatrician had reccommended that he receive OCD medication if he got worse or had other OCD issues. Is chewing on his clothing continously consider OCD? His does this behavior at school also. He is asked not to and stops for a minute and returns back to chewing.