As an anti-inflammatory and decongestant, ETTO's Blue Mallee Eucalyptus oil helps to loosen mucus and clear congestion making it a wonderful remedy for cold, flus & viruses affecting the respiratory system. Research has also demonstrated that Eucalyptus oil can support the immune system thanks to its potent anti-inflammatory and antiseptic properties. Its antibacterial and analgesic properties can assist sore throats and other associated symptoms of colds and flu, including inflammation and fever.