Try an allergy elimination diet. For example, keep tomato out of his diet for a few days and then re-introduce it. If you see symptoms, either physical or behavioral, try again in a few days. Try to be systematic, to be certain before ruling out a food. Two excellent resources, which are probably available at your library, are Doris Rapp's book, "Is This Your Child," and William Crook's "Solving the Puzzle of Your Hard to Raise Child."





