Chevelle is almost 7 months, also very very itchy (she leans against the wall or door or furnace and scratches hard, bonk Bonk BONK! haha! I have changed her to a corn free food but she is still itchy. I think it's a shedding thing. She is shedding a LOT. Since it is spring, and puppies are very itchy anyway, hopefully it will pass soon. Try brushing him more, maybe?