Eucalyptus leaf tea is known for its antiseptic cooling and expectorant properties to treat and prevent colds and coughs. Pour 1 cup of boiled water over up to 1/2 teaspoon of the dried eucalyptus leaves (or 1-2 fresh leaves). Cover and steep for 10 minutes; strain. Sweeten with honey, to taste. You can drink up to 2 - 3 cups a day. While you sip the tea, relax, breathe and inhale the steam rising from the cup.