Also, specifically, lemon juice appears to break down CaOx stones
. I pass a kidney
stone at least once a month, so I completely understand what you are going through. No doctor would expect a 9mm stone to pass on its own, its just too big. I personalyl wouldn't be that anxious to break it up though, because a 9mm stone can make quite a few smaller ones. Luckily, in some blessed individuals, stones can stay in the kidney painlessly for many years without causing any trouble at all.