The wife suffers from kidney stones from time to time. Usually every few years. This bout she is passing a bunch of small stones, but has hit an impasse. She has not been able to pass one or pee for a little while, and hour. Does anybody have any secrets they know to prevent these things or break them up when these bouts occur? Wives tales, old hand me down remedy's? She has used vinegar in the past, lemon juice. When in Argentina she used some cactus and it really worked well.