Mullein is a very powerful mucus decongestant for the lungs.
FOR ONE SERVING: 
bring one cup of spring water to a boil, then turn the stove on the lowest heat, and add one tea or tablespoon full of mullien leaves, and let simmer for about 5 minutes. Or, you can turn off the stove completely after adding the mullien, and let steep for 10 to 30 minutes.(Optional) add freshly squeezed lemon juice and or raw organic honey to taste.( only add honey to teas when they are cooled not hot, as the heat can kill the benefits of the honey)