I can help. I am 10 year apprentice in Naturopathi/Homepathy treatment.
1. The cause of kidney stones is a calcium deficiency. I can explain how if you like but to stop the formation of these stones the calcium deficiency needs met. Look for these ingredients pictured here and be sure it is plant derived and not synthetic. You can dm me your address and I will ship you some if you need or can not find these ratios of ingredients.
NOTE: if in severe pain or passing a stone now go for laser treatment to disintegrate the stone. NO surgery.
2. For symptoms & to dilate the urethra and clear stones try Boiron Homeopathy belladona, berberis vulgaris, calc carb, cantharis, lycopodium
These each play a part in dilating or clearing the left or right kidney, etc. You can search the name with kidney stone and see how it helps.
You can order from Boiron's website or amazon if needed immediately. Sometimes Sprouts Grocery or Whole Foods will carry these.
3. Lots of water
4. see co