Originally native to Australia, eucalyptus trees are now grown all over the world and used for their medicinal properties. Their healing power comes from eucalyptus oil, which is made from the tree’s oval-shaped leaves. The leaves are dried, crushed, and distilled to release the essential oil. After the oil has been extracted, it must be diluted before it can be used as medicine. Here are nine benefits of eucalyptus oil.Dosages of Eucalyptus OilAvailable as an oil.Note: Eucalyptus oil must be diluted and should not be ingested at its full strength. Dosage Considerations – Should be Given as Follows:Arthritis: 5-20% in an oil-based formulation or 5-10% in an alcohol-based formulationNasal Congestion: 1 teaspoon in boiling water for steam inhalation; also rub on chest and around the nose