To prevent allergy development in the first place, the American Academy of Pediatrics strongly recommends breast-feeding exclusively for the first six months. If a nursing baby shows allergy symptoms (like itchy rashes), Mom should avoid milk, eggs, fish, peanuts and tree nuts–some of the most common culprits. If you have a family history of allergies, wait until your baby turns 1 to introduce cow or soy milk. At 2, he can try eggs, and at 3, introduce nuts and fish. Allergies to nuts and fish usually last a lifetime, but dairy allergies can lessen with age. To see if your child has outgrown an allergy, ask a pediatric allergist to do a “food challenge.” With luck, ice cream can go back on the menu.?