Several herbs are successful in treating asthma & may work more effectively than standard treatment. EUCALYPTUS-excellent asthma remedy. Opens air passageways & can be inhaled for instant relief. Is anti-inflammatory & destroys mucus. COFFEE-caffeine works to open the airways & can improve & open the lungs for several hours. GRAPEFRUIT & OTHER CITRUS FRUITS reduce coughing & blockages in the lungs & improve lung function. BOSWELLIA, GINKGO, & PINE BARK also benefit.