There is a product called Renavive. I believe the website is http://www.renavive.com.
A friend of mine got a kidney stone which causes him severe pain. He ended up finding the Renavive product through researching the internet and he is now kidney stone free. I think the product is all natural too. I know it helped him with the pain, helped breakdown and dissolve the stone and flush it out of his system. He told me about the product. I have not yet had a kidney stone but I know others in my family have so I'm keeping a note of the Renavive product just in case. Anyways, I saw your post and thought I would share this information. Check it out, it could only help. Good luck with your stones!