i still think what happened to you is that more stones kept moving up after each flush, and this is what was the cause of your pain. i think the relief you experienced was not because of the coating effect of the oil, but because you were flushing stones. i am fairly intimate with the effects of alot of fats. in point of fact, cold pressed olive oil, is more of a cleanser than a substance that will soothe. raw butter and raw animal fats have a soothing effect.