It’s believed that more than twenty percent of all Americans suffer from allergies, making this one of the most common medical complaints. Instead of relying on costly prescriptions or over-the-counter medications, there are ways to manage your allergies naturally. Collinsonia. The herb Collinsonia (or Stone Root) helps stabilize the lining of the sinus cavities and minimize the build-up of excess mucus in the sinus cavities and throat. When used with the flavonoid Quercetin, which reduces inflammation, these products alleviate the symptoms of seasonal allergies. Dr. Peter D’Adamo’s unique formulas address the root causes of allergies, relieving the uncomfortable symptoms so you can breathe easy. Dr. Peter D’Adamo offers a full line of unique allergies and respiratory formulas listed below.