The Eucalyptus tree is native to Australia but it can also be found growing in subtropical regions around the world. Its medicinal properties come from its oil, which can be extracted from the fresh leaves, branch tips, and dried leaves. It was commonly used by Australian aborigines to cure and relieve fevers. It is commonly sold as a supplement or an ingredient in over-the-counter products. It has antiseptic, anti-bacterial, anti-inflammatory, antispasmodic, decongestant, and warming properties that makes it good at treating runny nose, asthma, sinusitis, burns, cuts, abrasions, scrapes, boils, wounds, sores, cavities, dental plaque, gingivitis, dental infections, cough, bronchitis, rheumatism, minor muscle aches and pains, nasal congestion, cold, flu, throat problems, pneumonia, respiratory infections, sore throat, and ulcers. It is very safe to use when taken in moderation but it is not wise for people suffering from kidney or liver problems or women who are pregnant to use it.
The supplements are good at treating cough, bronchitis, and rheumatism. When used as an ingredient in over-the-counter drugs, it is good at treating minor muscle aches and pains and for temporary relief of nasal congestion and coughs associated with cold. Tea prepared from Eucalyptus leaves can ease a sore throat when used as a gargle. When the oil is massaged into the chest, it can treat congestion and cough.