You can use eucalyptus oil in a different method.
1. Personal inhaler. These could be anything from placing a few drops on a cotton ball and placing the cotton ball in a pill bottle to inhalers you can purchase. These are a great way of getting the oils into your lungs without subjecting others to the oils.
2. Steam tent. Heat water u until it starts to steam but not yet boiling. Put the water in a bowl with 1-2 drops eucalyptus oil and place your head over the bowl with a towel covering both your head and the bowl.
3. Candle warmer. Place some water and a few drops of eucalyptus oil into the bowl of the candle warmer and then heat the water with a candle or other heat sources.
4. Dilute the eucalyptus oil into a carrier oil or lotion and apply to the skin.