Aromatherapy?

So I've been having trouble breathing through my nose at night. It just gets stuffy and I have never had allergies in my life so I don't think it's allergies, I honestly don't know what it is. The doctor prescribed me a nasal spray which did absolutely nothing. I also tried flonase, again, nothing... I've been using a saline spray which helps for a few hours but then I have to wake up two times per night to use it again which isn't really ideal.

Anyway, i somehow came across using peppermint oil to open the sinuses. Someone said to put 1-2 drops on your palm, rub your hands together, and then cup your mouth/nose and breathe it in slowly.

I just picked some up at the vitamin shoppe and even though I'm still a few hours from bedtime, I had to try it and it really opened up my nasal passages.
I'm excited to try it before bed, I really hope it works because I've been suffering for a while.

But this made me think that maybe I should get an oil diffuser and i could use it in there but I know nothing about the diffuser and essential oils.

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