4 months back USG ABDOMEN of my daughter revealed multiple gallbladder stones, largest measuring 13mm. On taking Ursodeoxycholic Acid, 300 mg twice daily on the advice of gastroenterologist, the size of largest stone has come down to 11 mm but during the period my daughter experienced severe pain abdomen totally thrice from the day of diagnosis, that is 4 months span and used to get relief from pain on having I.V pain killers  from hospital. My daughter experienced abdomen pain whenever she took spicy and oily food. Her CBP and LFT reports are normal. Kindly advise further course of treatment for her recovery from present condition.