Try Eucalyptus Oil
Made from the dried and distilled leaves of the eucalyptus tree, eucalyptus oil is an essential oil that can help reduce congestion, sinus pressure, and excessive phlegm. Individuals should consider inhaling a vapor that includes eucalyptus oil as a main ingredient to reduce phlegm. This is the most common method of using eucalyptus oil; typically, patients rub a eucalyptus-infused cream onto their chest and inhale the vapors. If possible, look for a cream with natural ingredients.
Alternatively, patients may wish to inhale eucalyptus vapors by placing several drops of eucalyptus essential oil into a diffuser. This oil could also be added to a warm bath. Any of these methods will help loosen phlegm and thin it out so it can be more easily removed by the body. Additionally, eucalyptus oil helps provide relief from a stuffy nose, another common ailment among individuals with excessive phlegm.