It seems that you can get rid off the stones. Afterwards you can do the flush a couple of times a year.
Also you can live with Gallstones because 90% of the population does. See info at end of liver/gallbladder cleanse.
During the flush I have a glass of Alka Seltzer next to my bed. It has to be the kind WITHOUT asperin and I sip it as needed.
I am usually not to precise about the flush, though you should. But as long I see some "green peas" (stones) I am happy.
I do use my colema board before and after the flush to make sure all the stones came out.
I also do kidney and Bowel Cleanse once in a while.
Right now I am using chanca piedra for 6 months (started 10/1/03). BTW my stone is 25 mm.
You should try to read the different forums, because people follow different systems.
I follow Andreas Moritz mainly, though I must say I am on vacation and are having some red wine with lunch! No one is perfect. :)
I try to follow the ayurvedic body type eating, I had tried this 15 years ago. So this is a new start.
Ask your wife to read as much she can at curezone just for motivation. May be 10 minutes every day. It is uplifting.