This formula contains a triple strength dose of four natural herbs plus vitamin C for the symptomatic relief of hayfever, allergies and cold symptoms. This product contains horseradish, traditionally used in Western Herbal medicine for the relief of mucous congestion, and vitamin C, which may also support the body's immune system. How this product works - Relieves mild upper respiratory tract infections such as colds Relieves mucous congestion Relieves allergies, hayfever and allergic rhinitis symptoms