If a Kidney stone is below 0.5 cm (5 mm) in Diameter, it can be removed/should be tried to remove without doing Surgeries like EWSL,PCNL.
1) Drink much fluid
2) Eat Citrus Fruits, Drink Citrus fruits juices. Citrates reduce the build up of uric acid and eliminate the build up of calcium salts
which cause the formation of kidney stones....Try 3 to 6 months,but the patient should check up monthly to make sure any other complications.