Information of extensive information on treating conditions of the respiratory system. Conditions discussed include: coughs, acute and chronic bronchitis, pertussis, the common cold, influenza, emphysema, and whooping cough. The actions of the respiratory system are discussed at length, as well as nutritional and lifestyle suggestions in maintaining optimal health of this system. Herbs discussed include: nettle, thyme, comfrey, fenugreek, mullein, rosemary, horseradish, elecampane, lungwort, soapwort, Iceland moss, ribwort plantain, coltsfoot, marshmallow, cayenne, licorice, lobelia, wild cherry bark, usnea, pleurisy root, grindelia, goldenseal, echinacea, astragalus, peppermint, forskolin, osha, garlic, eucalyptus, and many more.