DEAR DOCTOR K: I recently passed a kidney stone, and it was really painful. My doctor gave me medicine. Is there anything else I can do to prevent another one?
DEAR READER: Besides the medicine, your diet can influence your risk of getting another kidney stone. Kidney stones are hard chemical deposits that form inside the kidneys. They can be as small as grains of sand and pass painlessly out of the body in urine. But they also can be the size of a pea, a marble or even larger.