Dried knotgrass / knotweed herb is said to be good for treating mild respiratory catarrh, as an expectorant for coughs, colds and bronchitis, and for alleviating inflammation of the mucous membranes of the mouth and throat. It can also be used against gingivitis. MEDICINAL HERBS BY ACTIONS & TARGETS IN THE BODY Antibacterial or Antiviral Aloe Ferox, Aniseed, Astragalus, Burdock, Catnip, Cayenne, Chickweed, Echinacea, Elder, Garlic, Lady’s Mantle, Lemongrass, Liquorice, Meadowsweet, Myrrh, Olive Leaf, Pau D’arco, Red Clover, Rosemary, Slippery Elm, Turmeric, Uva Ursi (Bearberry). Anticancer or Antitumor Astragalus, Birch, Burdock, Dandelion, Fennel, Garlic, Green Tea, Liquorice, Milk...