My feeling is that the Bentonite clay might bung you up, and is best avoided if you have pain. I would stick with 2 doses of Epsom Salts 2 hours apart. Use the dose that you used for the flush in warm water. [In my case 1 dessertspoonfull] and lay down for an hour after each dose with a hot water bottle or heat pad over the pain to allow the stone to pass. When the pain has passed keep your bowels open and watch for results. Hope this helps . Love and Light Deotima.