Please choose the correct ending to complete the given sentence: Health: [header] How to relieve kidney pain [title] Drink plenty of fluids. [step] This is the single most important thing to relieve kidney pain. You should drink between two to three liters of water per day when healthy, but you may need more to help you pass kidney stones.

Ending1: You can choose to sip water periodically throughout the day or completely stop drinking altogether. The more fluids you drink, the better you feel as you pass the kidney stones. Ending2: [substeps] If you are taking medicine, like pain relievers, make sure to drink plenty of fluids every day, especially those with lots of folic acid, such as vensagiacin, or epsom salts. [title] Use your bathroom with toilet seat up. Ending3: Water helps wash away bacteria and dead tissues from the kidney. Stagnant urine is an excellent medium for bacterial growth. Ending4: Dehydration can increase the inflammation and firmness of the kidney. It can also decrease pain caused by blood thinning.

Answer format: ending1/ending2/ending3/ending4