I had a raging kidney infection about 5 years ago. Pain was horrible. I cured it with oil of oregano. I took 3 3 times a day of the Oregamax (capsules) and then put 2 drops of the oreganol under my tongue like every 2 hours. I also painted it over the area. Worked like a charm and have not had one since. And yes, I was diagnosed at the doctors office as I had crystals in my urine.