Main uses in Massage Cedarwood essential oil is commonly used in aromatherapy to calm clients and to treat the effects of stress Cedrol, one of the components of cedarwood oil, has been shown in clinical trials to do ecrease blood pressure, reduce mental tension, and shift subjects into the parasympa thetic mode It is probably useful for clients with heightened blood pressure and other stress-related issues, including insomnia, and adrenal burnout, especially when used relaxation massage In my experience, it is an extremely useful oil for chronic respiratory problems, especially those involving a lot of mucus in the lungs Because of its mildness, it can be used in quite strong concentrations (probably up to 25% over the chest and upper back, or given to clients in a resp ratory blend to use at home steam inhalatioti It also appears to have a good effect on allergic respiratory problems, possibly as a result of its stabilization of mast cells, a contributor to allergic responses It has been shown clinically to be a strong anti-inflammatory and analgesic when given orally but whether it has these effects when applied topically is less clear.