Eucalyptus leaves used for aroma and other purposes. Improves Respiratory Health – Boil leaves in water in a closed vessel and inhale directly to cure running nose, cold etc. and overall better respiratory system. Herbal tea. Eucalyptus is a natural anti-inflammatory substance, so consuming its tea can do everything from easing aches and pains to protecting the heart. Controls Diabetes. Skin Care - The natural antibacterial properties of eucalyptus make it ideal for protecting skin health as well. Rubbing its leaves on the skin can work as a quick fix, but drinking its tea works much faster and more effectively. Boosts immunity - The powerful effects of eucalyptus tea are widely studied, and aside from its direct impact on the respiratory system, it is recommended to protect the body from a wide variety of bacterial infections.