I agree with Jorge, Thyme oil is very aggravating to the gut and irritating to the liver. Most essential oils are not a good idea to take internally for they contain harsh concentations of alcohol like chemicals in them. Candida sufferers can have sensitivities to the alcohol like chemicals in essential oils. Just like they are sensitive to strong odors, chemicals etc…The same kind of sensitivity can happen when ingesting it internally–an allergic type reaction to the alcoholic like chemicals in the oils.
Some of the chemical constituents in thyme oil: Phenols,linalol, borneol, alcohols<14%, etcc...
The issue with a lot of essential oils(internally) is the amount of aggravation that they can cause on the GI tract and liver because of the harsh alcohol like chemicals in them. Most of the oils are highly anti-bacteria and I don’t see any good long term research that has been done on the long term effects of some of these oils on your good flora. I think essential oils should be for external use only. They are too harsh to be used internally. The only acception might be someone who is fighting cancer—they use frankincense internally for brain cancer. My wife is a distributor for doterra oils, doterra is the best brand out there. She provided me an essential oil book that has the chemical composition of a lot of essential oils. I told her not do to any type of essential oil internally/especially not daily(even lemon oil—Lemon oil can have up to 12% aldehydes), because of their alcohol like chemicals and their potential effect on all bacteria(Good+bad).
I just think there are better/less harsh approaches towards candida than using essential oils internally.