Essential oils date back at least 5000 years to ancient Egypt, China and India. Doctors and healers used them as medicines. Others used them for spiritual and religious reasons and still others put them in cosmetics. Today their use is growing in popularity as more people want products that are healthy and natural. The oils come from plants, are easy to use, can be more effective than pharmaceuticals and are less expensive. People use them in baths, as we explored recently, as incense or in spray bottles or diffusers. Even though they are widely available, oils need to be used with care, and t
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