Eucalyptus has anti-inflammatory, decongestant, antiseptic, antibacterial and antiviral benefits. This oil also has the ability to enhance the effects of other essential oils that it is mixed with. Eucalyptus blends well with Thyme, Lavender, Lemon and Pine essential oils. Eucalyptus oil has been used for hundreds of years to help combat cold symptoms. In skin care, Eucalyptus is commonly used to relax muscle and joint pains. This oil can also be found in wound healing agents due to its germicidal effects, and deodorants due to its antimicrobial properties.