How do you dilute eucalyptus oil?

To dilute eucalyptus oil, mix it with a carrier oil such as coconut, olive, or almond oil. A common dilution ratio is 2-3 drops of eucalyptus oil per teaspoon of carrier oil for topical use. For diffusing, you can add a few drops of eucalyptus oil to water in a diffuser according to the manufacturer's instructions. Always perform a patch test before applying diluted oil to the skin to check for any allergic reactions.