How long does it take to pass a stone? What other techniques can be used to pass a stone besides drinking plenty of water and fluids?

Meds.... Stone passage is variable, and sometimes you cannot pass them without intervention, which can include several options, including a "shockwave bath" to break it into smaller pieces...In addition to time, water and pain control, sometimes a medication that is call Flomax (tamsulosin) can help. Contact your physician again, and you may need a urologist for additional options. Good luck!