These scents are believed to effect the emotions. Aromatherapy can be traced back as far as 3000 B.C. in China and Egypt. The Egyptians used to embalm dead bodies in essential oils to preserve them. In China, The Yellow Emperor's Classic of Internal Medicine was written by Huang Ti. Myrrh was used by warriors on the battlefields long ago to dress wounds.
Myrrh is also excellent for treating stress and stress-related conditions.
It is known that the essential oils, such as Frankincense, were burned and sprayed in the vicinities where physicians and caregivers were tending to those with the plague. Frankincense and Myrrh were the first essential oils to be used as incense. Lavender essential oil is excellent for burns and mosquito bites. Eucalyptus oil is often used for colds and respiratory ailments. Clary Sage is good for sore muscles.