Oregano Oil: One of nature's best antibiotics! Literally like a first aid kit in a bottle, this oil can be used topically or taken internally. As always, please do your research before consuming herbal medicine, especially if you are on medication or have pre exisiting conditions. Additional Instructions: To simplify things, it's a 1:1 ratio of cut-up oregano (dried or fresh) to carrier oil of choice. I prefer extra virgin olive oil. I've read that extra virgin olive oil is the best choice for o