There is no fastest way to relieve back pain caused by kidney stones. Different treatment options have to be chosen according to the specific situation. Commonly used treatments include extracorporeal shock wave lithotripsy, oral diclofenac sodium, and surgical treatment. 1. For smaller kidney stones, extracorporeal shock wave lithotripsy (ECT) can be considered to break up the kidney stones into smaller sizes and dislodge them to relieve the pain caused by kidney stones. 2. If the pain is acute, you should take diclofenac sodium, tramadol and other painkillers to treat it. In addition, the pain caused by kidney stones may also be related to inflammation, you can apply levofloxacin and other drugs anti-infection treatment. All the above drugs need to pay attention to the side effects and adverse reactions, please use the above drugs under the guidance of your doctor. 3. If the back pain caused by kidney stones can not be relieved for a long time and the stones can not be discharged by themselves, surgical treatment is recommended. Ureteroscopic laser lithotripsy or percutaneous nephrolithotripsy lithotripsy can be carried out, which can eradicate the back pain caused by kidney stones. If you have kidney stones, it is recommended to go to a regular hospital in time.