Start working with this tincture for immune support and the liver two months before your allergy season starts. This tincture is safe to take daily. Avoid if taking blood thinning medications. Nettle contains high concentrations of quercetin–an antioxidant which stabilizes mast cells and prevents the excessive release of histamine–along with other flavonoids. Goldenrod, it’s a gentle upper respiratory tonic, reducing mucous secretions in the sinuses to dry up runny noses, weepy eyes, and phlegmy lungs. Ginkgo leaf contains at least a dozen different known anti-inflammatory chemicals, more than half of which have some degree of antihistaminic activity. Some of its most famous constituents, the ginkgolides, are known to inhibit platelet-activating factor–a chemical whose excess presence is implicated in asthma and allergies. Licorice Root brings down inflammatory excess throughout the body. It is a moistening herb, which helps to counteract the drying of Nettle.