Recently i found out that i have 2cm kidney stone in my left kidney... A general surgeon in my area said it will be only removed by pcnl surgery but its still risky coz my kidney stone isnt blocking the bladder and it isnt swelling but he said it will b earier for him to perform the surgery if the stone blocks the bladder pipe and if my kidney swell...so he told me to take tamfil-ds tablet for 21 days so that if the stone move towards bladder n swell it will b easier for him to do the surgery...m really worried will i b ok after taking the medicine or is it ok if the kidney swell before surgery pls suggest