Essential oils are extracts from plants, so concentrated that they should not be applied to skin (or touched) without being diluted first. This is why they come in little bottles. You don’t need a lot. Whether or not you believe them to be medicine, similar rules apply: Follow directions, use recommended dosages, keep out of reach of children, don’t put them in your eyes (nose or ears) and consult a physician before use if there are concerns like liver disease.Essential oils should be added to other oils, “carriers,” before being applied to the skin, usually at a rate of much more carrier oil (like almond oil) to mere drops of essential oil(s). Before barreling into rubbing the stuff around, test a patch of your skin, such as the inside of the arm. If it itches or goes red, don’t use the product. Essential oils are flammable, so watch it with the accompanying candles
read more here: How to Make a Therapeutic Blend of Essential Oils for a Relaxing Massage | One Green Planet