Compositions suitable for reducing symptoms of an allergic response toenvironmental allergens comprisingmolecules that specifically inhibit the ability of the allergen to bind tomast cells in an animal predisposed to having an allergicresponse to the allergen and methods for reducing such symptoms comprisingcontacting a source of the environmental allergenwith such compositions. Kits, packages, medicaments, and means ofcommunicating about the compositions and methods are alsoprovided.
