It depends on how long you are willing to live with the pain or discomfort. All of the methods I know of take time, months or even years. How much torture can you endure? I'm up to six months of dissolving herbs for theatment of a 1 inch calcified stone. Will soon have another ultrasound and see if it has helped.
You can take the quick way out, surgery, or the long way. The choice is yours. Just how bad do you want to save your gb. Nothing in life comes easy. If one flush did it, there would never be gb surgery again.