By far my favourite aromatherapy is a sleepy roll on recipe I got. So simple...
10ml carrier oil eg apricot
2 drops ylang ylang
2 drops bergamot
2 drops geranium
It's a massive help to me! And the cost per use is pennies.
How do you use aromatherapy or oils?
Yes I reckon it counts. I'd not heard of thieves oil, what's it used for?
Lots of things, this page has a lot of info and I also use it for cleaning:
https://www.healthline.com/health/thieves-oil
I think it should be the essential oil that everyone has as it has so many practical uses for sterilization.