Most likely, if a kidney stone causes a blockage in the urinary tract, the person will need treatment. Most kidney stones are small, so they go untreated and the person must wait for them to disappear and a painkiller will be prescribed. One way that someone could help the stone pass is to drink plenty of water to help move the stone through the urinary tract, and if they are unable to drink due to vomiting, then it would be suggested that the person goes to hospital to have this done . get fluids through an IV. The urologist can remove the kidney stone and break it into smaller pieces if the stone is large and the urinary tract is blocked with treatments such as shock wave lithotripsy and ureteroscopy. In shock wave lithotripsy, a shock wave machine is used to break up the kidney stone and then the small pieces that break off allowing them to pass through the UT. In a ureteroscopy, a uteroscope, which is a long tubular instrument that includes an eyepiece, is used to locate the stone and fed through the urethra and into the bladder ending in the ureter. Once the stone is located, the urologist can break it up using laser energy. Another procedure used to remove a kidney stone is percutaneous nephrolithotomy, in which a thin wire-like instrument, a nephroscope, is used to locate the stone and remove it by introducing it directly into the kidney through an incision made in the kidney cavity.