Most of the immunogenic proteins are found in the egg white with five major allergenic components: ovomucoid (Gal d 1), ovalbumin (Gal d 2), ovotransferrin (Gal d 3), lysozyme (Gal d 4), and ovomucin. Allergens are known to induce type1 IgE hypersensitivity. Healthcare professionals utilize this diagnostic tool to provide guidance for allergen-specific immunotherapy.