Okay herbalist etc

who makes best ESENial oils esp oregano essential oil..A you tube herbalist says best from Spain, the mditerran, Austrailia etc....He mixes it into a good Greek olive oil

I want to consume it of course way diluted sa for toothache . general antibiotic etc???

Ive got oreagano grown for quite a few year in the ground. But read it takes a lot. Now want to try it diluted on My feather tribe. Cause they are haveing terrible runs. molting and lack of egg laying.

Brands please.thanks all