Hi Willows - have you ever used Epson Salts... & now switched to the Mag. Cit. pills? It's my understanding that the ES is what causes the ducts to open up really big in order to let stones etc. flow painlessly through. I'm afraid what will happen if big stones try to squeeze through an unrelaxed duct. What size stones have you passed? My sweet, brave daughter has passed grape sized stones. The part she hates the most is the burning when the ES passed through. I would love to recommend your solution so she won't dread the cleanses so much. Please respond as quick as you can. She is scheduled to do a cleanse soon.