cjd - Pat is right on - Allergies can wreck havoc with children....My daughter was allergic to milk.....Then came strawberries, oranges and shellfish. Her allergies caused very bad excema and who knows what else in her system when she was young. She has since grown out of her allergies, but dairy products can still give her trouble. If your child is allergic to milk, chances are there are other food allergies. Maybe someone can suggest a good book on childhood food allergies.