Syrups You can make an herbal infusion, decoction, or tincture into a syrup, using sugar or honey as a preservative. Herbal syrups are soothing for coughs, sore throats, and other common respiratory ailments.
First make an infusion, decoction, or tincture according to the above directions, and strain. For each pint of liquid add one pound of unrefined sugar or honey. Stir mixture together in a saucepan and boil until the sugar or honey has dissolved completely. The mixture has become a syrup at this point. Let the syrup cool. Store the syrup in dark, glass bottles capped with a cork or another non-sealing lid. It is important that the syrup is not kept in a tightly sealed container because as the syrup begins to ferment it may cause the bottle to explode. Store in the refrigerator. www.doityourself.com/stry/herbalhow