i have gone from putting 2 drops per oz in the bottle to putting one drop per oz in the oil. i think that is about the right amount. but then i am pulling five times or so per day and i think i use a little more than a tablespoon each time, though i have been cutting back on that. i think using a smaller amount and doing it numerous times is better. but about the oregano, i think exposure to one drop per day, internally or externally, is quite enough. if you come down with something, then yea, hit it hard. i have put 8 drops of super pure oregano oil in a capsule and taken that with water. i dont have problems with it. but i did find that too much of that was making my guts swell. i thought i had candida again, but that seems to not be the case. i think now it was too much oregano oil.