Features and Benefits Relieves coughs and spasms associated with colds, flu, bronchitis and other respiratory tract infections Contains expectorant herbs that have been traditionally used to help clear mucus from your lungs, dissolve and clear phlegm, and relieve bronchial congestion Helps relieve dry, hacking coughs, ease spasmodic coughing spells, and soothe the bronchial airways Specially formulated according to the principles of traditional Chinese medicine to help maintain lung health and support respiratory function Immune-supporting formula to help fight upper respiratory infections and aid recuperation How It Works In traditional Chinese medicine, the Lung organ-meridian system encompasses the lungs, sinuses, throat, mouth and skin. Together, these tissues play a vital role in immunity by helping to disperse Defensive Qi (a specific form of vital energy that helps you fend off disease) throughout your body.