My father has been suffering from kidney stone pain for last 10 days. 2 calculi measuring 6.8 & 5.9 mm are seen in mid pole calyces of right kidney and 1 calculi measuring 5.9 mm seen in mid pole of left kidney. And a calculi measuring 8.1 mm is seen in proximal left ureter. He is admitted at hospital for 10 days. Pls suggest me if surgery is required or not ?he is taking berberis vulgaris mt for 2 years, at 10 drop per day, but now taking 15 drop thrice a day. Pks help me.