Pollen is a seasonal problem for millions of people around the world who suffer from allergenic reactions to the antigens embedded on the outer casing of these microscopic grains. Tiny grains of pollen are released into the atmosphere by a wide spectrum of flowers, trees, weeds, grasses and other plants that reproduce seasonally. Although most of these fertilizing gametes seldom reach their destinations, many find their way into the noses and throats of unsuspecting humans where they illicit an allergenic reaction.