A Scents Worth Effects On The Mind - A stimulating oil which combats mental exhaustion and aids in concentration. Effects On The Body - It is a good immuno-stimulant, and excellent for people who are tired, run down, and prone to frequent colds. Eucalyptus is a versatile oil known best for its antiinflammatory, antiseptic, antibiotic, diuretic, analgesic, and deodorizing properties. According to research by Jean Valnet, a spray containing 2% of Eucalyptus essential oil will kill 70% of staphylococci in the air. Eucalyptus has great bactericidal properties, and can be used in combination with Chamomile and Lavender in the treatment of chickenpox. It reduces the itching symptoms associated with chickenpox.