For Aromatherapy - Grown predominately in Australia, eucalyptus can readily be found worldwide in a wide range of products including rubs, creams and mouthwashes. It's also popular for its soothing effect on the sinuses and respiratory system. Just place a few drops of Eucalyptus Oil in a bowl of steaming hot water and inhale the pleasant, comforting scent. Blends well with many other essential oils, especially thyme, lemongrass and pine.