Food allergy testing should be considered in any individual who presents with an immediate type reaction (i.e. hives, swelling, wheezing, dyspnea, vomiting, diarrhea, hypotension) after eating, particularly if there’s a personal or family history of atopy. Food allergy testing should also be considered in children with moderate to severe atopic dermatitis. One third of these cases will prove to have food allergies that can exacerbate their eczema. The most common of these are egg, milk, wheat, soy and peanut allergies.