[ldenise]

check the ingredients in your dog food.... I have one that has an alergy to anything that has corn in it. she also has an alergy to misquito bites.
if you dont' get the shampoo rinsed really well or the kind of shampoo you use ... that could cause itchy skin. there are a number of reasons for itchy skin.
I even have one that will itch and lose hair around his eyes if he has peanut butter.