If your child has trouble breathing or gets hives after eating, then she may have a life threatening food allergy. In children, particularly young ones, intolerance to certain foods is fairly common. But actual food allergies, when the body’s immune system reacts to certain foods, are rare, effecting only one to three percent of the population. Nonetheless, food allergies can be dangerous and even life threatening. Allergist Dr. John Dean explains some of the signs of a true food allergy. “Possible signs of a food allergy are severe eczema, swelling...