Corylus avellana Ab.IgE

This test detects IgE antibodies against hazelnut proteins, indicating a potential tree nut allergy. Hazelnut allergies can range from mild oral itching (oral allergy syndrome) to severe systemic reactions. People with birch pollen allergies often have cross-reactivity with hazelnuts and other tree nuts. A positive result confirms hazelnut allergy and may indicate sensitivities to related nuts. Given that nut allergies can be severe and potentially life-threatening, positive results require careful label reading, dietary avoidance, and possibly carrying an epinephrine auto-injector.