Eucalyptus, an herb from Australia, is great at easing congestion. You will find it as an ingredient in many over-the-counter medications such as VapoRubs, nasal decongestants, cough suppressants, etc. Eucalyptus contains the chemical eucalyptol which contains both decongestant and antiseptic powers. However, one should never ingest eucalyptus oil! Note that teas and internal uses such as cough suppressants that contain eucalyptus use the leaves which are very safe.
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