Once it had become acclimatized in Europe, in the 19th century, eucalyptus gained a strong reputation as a remedy for respiratory conditions. Its antiseptic essences are expelled from the bronchi, producing an antitussive effect. It is popularly used in inhalants and infusions, but these days there is a preference for the essential oils, whose properties vary according to the species. In its country of origin, eucalyptus is considered to be an antipyretic.
When eucalyptus leaves and branches are steam distilled, they yield an essential oil with a distinctive, fresh, balsamic scent that has well-known bactericidal, anti-inflammatory and deodorizing properties.