Hi, Linella. I have been using garlic and oregano oil in an empty capsule along with Young Living's Thieves blend (anti-everything). The capsule really helps so I don't mind taking it--it does taste very strong!
My Essential Oils Desk Reference says oregano oil is:
anti-aging, powerful anti-viral, antibacterial, antifungal, antiparasitic, anti-inflammatory, immune stimulant.
Uses: Arthritis/rheumatism, resp. infections, digestive problems
There are many published articles you can find at
www.pubmed.gov .
I hope this helps. If I can assist in any way, PLMK.
Wishing you good health,
Ann