This is the official NHS guidance, the Dr I saw said water was the key...
Kidney Stones - Prevention - NHS Choices
On a side note, the service I got from a very, very busy staff at the hospital was top notch.
Two hours after happily posting about mulled wine I'd found at the back of the cupboard, I found myself doubled over in agony at A&E with what seemed to be half of Halifax's finest 'yoof' who were determine not to let their never facial disfigurements stop the party...
9hrs, 5 xray's, and...