Commonly known as blue gum. Its scent is camphorous with a woody sweet undertone. Some of this oil's properties are expectorant, decongestant, insecticide, analgesic, antirheumatic and antiseptic. Inhibits proliferation of the cold virus. Deters mosquitoes and other insects. Cools emotions, aids concentration. Effective in all types of fever, lowers the temperature, makes breathing easier, loosens phlegm. It is one of the most valuable oils for treating the respiratory system. According to research, the spraying of a 2% emulsion containing eucalyptus oil kills off 70% of local, airborne staphylococci. Helps with cystitis. Clears up sinus congestion. Blends well with basil, cedarwood, lemon, vetiver, peppermint and clary sage.