Holly Hill Health Foods Sinus Blaster Spray (Professional Strength) 1 Ounce. It is an extremely pungent formula with aromatic compounds that produce vapors that open and dilate the sinus passageways in order to drain them deepen breathing and help to support immunity in the sinus. Fresh Horseradish Root Echinacea angustifolia Root Fresh Spilanthes Herb Elderberry Garlic Bulb Cayenne Fruit Olive Leaf Horehound Herb Licorice Root Peppermint Oil Boneset Herb Goldenseal Root Wild Cherry Bark Fresh Osha Root Andrographis Herb Onion Bulb Yarrow Herb. Grain Alcohol Deionized Water.