You are having recurrent kidney stone..There are some of the guidelines which you should follow. 1. Drink at least 2 lit of water every day. 2. Avoid drinking too much carbonated drinks (cola) 3. Avoid taking too much of these foods such as chocolate, beets, nuts, rhubarb, spinach, strawberries, tea, and wheat bran. 4.Avoid red meat. 5. Avoid taking calcium supplement (depends upon what kind of stone you have.) Sometimes we also use some medicines which called Thiazide and Allopurinol..but it should be taken after doctors consultation