Essential oils?

What is the deal with these? I see people talk about these online all the time but I feel kinda clueless. They are good for different things, but do they really work?

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About Melissa
Birth: December 31
On Moms.com since: Mar 3, 2014
I am a single mom of two fantastic kiddos that I love to pieces. Currently in school working towards my teaching degree. You can find me most days on www.mommathoughts.com when I am not here chit chatting! :)