I am from pune india. I had lot of pain in abdomen and back on right side and doctor asked sonography. Done twice in the interval of 1 days The second test report as under slight improvement in right renal obstructive changes. Right kidney still shows mild fulness of calyceal system. Mm calculus still noted in right lower ureter. Both kidney shows calyceal calculi oc about 23 mms. No fresh lesion noted. I am advised to take tamiflow 0. 4 mg. Kindly advise. What type of stone I had and what care/diet I shall take and how many days it will take to go the stone. Where it will be painful during slipping of stone. Thanks.