Eucalyptus is an evergreen tree of the Myrtaceae family that typically grow from 30 to 55 m (98 to 180 ft) tall. The bark sheds often, peeling in large strips. The broad juvenile leaves are borne in opposite pairs on square stems. It will help to open up your nasal passages naturally and allow you to have relief from a cold or allergies. In addition, you can use eucalyptus in a warm compress to soothe sinus pain and pressure. Eucalyptus tea can work to help soothe a sore throat and treat problems such as bronchitis. Sipping on a steamy cup of eucalyptus tea will also help to open your nasal passages and provide you with relief. *For bad breath, you can use a tincture of eucalyptus diluted as a mouthwash.