I have a 6.7 mm stone in my upper ureter. Stone was diagnosed 6months back but it was in the lower pole and was not troubling me. I am taking berberis vulgaris 10 drops in water twice a day. When will this stone flush out as its stressful to have another episode of pain. The pain subsided nw bt the stone has nt gone yet. I dnt want to undergo any surgery. Please suggest should it fall on its own. I am a vegetarian and have stopped drinking milk also to avoid calcium intake. Kindly help.