Kidney stone pain responds best to anti-inflammatory medications, not just standard painkillers. The pain comes from pressure building behind the stone and inflammation stretching your ureter, the narrow tube connecting your kidney to your bladder. Relieving that inflammation is the fastest path to feeling better, and there are several things you can do at home alongside medication to make the experience more bearable.
Why Kidney Stones Hurt So Much
When a stone moves from your kidney into your ureter, it can partially or fully block the flow of urine. That backup creates pressure that stretches the ureter and the tissue surrounding your kidney. Your body also releases inflammatory chemicals at the site of the blockage, which trigger smooth muscle spasms in the ureter wall. Those spasms come in waves, which is why kidney stone pain often hits in intense surges rather than staying constant. You might also feel burning or cramping lower in your abdomen if the stone irritates your bladder.
The Best Over-the-Counter Medication
Anti-inflammatory drugs (NSAIDs) like ibuprofen are the first choice for kidney stone pain, and they outperform opioid painkillers in clinical comparisons. European urology guidelines specifically recommend NSAIDs as the preferred option. The reason is straightforward: these drugs block the inflammatory chemicals your body produces at the obstruction site, which directly reduces the swelling and pressure causing your pain. Opioids mask pain signals but do nothing about the underlying inflammation.
In head-to-head studies, patients taking NSAIDs needed less rescue medication and experienced fewer side effects than those given opioids. Ibuprofen works faster than some prescription-strength alternatives for controlling renal colic, with a similar safety profile. For ongoing stone passage at home, a course of anti-inflammatory tablets for 3 to 10 days can reduce inflammation enough to lower the risk of recurring pain episodes. Acetaminophen (Tylenol) is also effective if you can’t take NSAIDs due to stomach or cardiovascular concerns, though it won’t reduce inflammation the same way.
Antispasmodic medications, sometimes marketed for cramping or gut pain, are significantly less effective. NSAIDs provide roughly 50% greater pain relief compared to antispasmodics, and patients taking NSAIDs are far less likely to need additional rescue medication. Adding an antispasmodic on top of an NSAID doesn’t meaningfully improve outcomes.
How Alpha-Blockers Help the Stone Pass
If your stone is in the lower portion of the ureter, your doctor may prescribe a medication that relaxes the smooth muscle lining the ureter walls. This makes the tube wider and less prone to spasm, which does two things: it helps the stone move through faster, and it significantly reduces the frequency and intensity of pain episodes along the way. In a multicenter trial, patients taking this type of medication reported using fewer painkillers and experienced notably less colic compared to a placebo group.
This isn’t something you’d take instead of an anti-inflammatory. It works alongside pain medication to shorten the overall ordeal. The stone still has to pass on its own, but relaxing the ureter makes that process quicker and less painful.
Heat Therapy Works Better Than You’d Expect
Applying a heating pad or heat patch to your lower back or flank is one of the most effective non-drug options available. In a randomized trial, patients in an emergency department who received a heat patch with no medication saw their pain scores drop significantly over 60 minutes. Only 11.5% of patients using a real heat patch needed rescue pain medication, compared to 31.4% in the control group. That’s a meaningful difference for something with zero side effects.
Use a heating pad, hot water bottle, or adhesive heat patch on the side where you feel pain. Keep it in place for at least 30 minutes to get the full benefit. The pain relief builds over time as skin temperature rises and the warmth penetrates deeper tissue. You can combine heat with medication for a stronger effect.
Don’t Force Fluids During Acute Pain
One of the most common pieces of advice for kidney stones is to drink lots of water. During an acute pain episode, though, aggressive hydration does not help and may make things worse. A Cochrane review found no reliable evidence that high-volume fluid intake during active colic reduces pain, speeds stone passage, or lowers the need for pain medication. In one study, patients given three liters of IV fluids over six hours had no difference in pain compared to patients given nothing.
This doesn’t mean you should stop drinking water entirely. Stay normally hydrated, sip fluids comfortably, and avoid dehydration. But chugging water during a pain episode won’t flush the stone out faster. It just increases pressure behind the blockage. Once the acute pain subsides, gradually increasing your water intake to around 2 to 3 liters per day helps prevent new stones from forming and may help move the current one along during pain-free intervals.
Positioning and Movement
There’s no single position proven to eliminate kidney stone pain, but most people find that certain adjustments help. Lying on the unaffected side with a pillow between your knees can reduce pressure on the blocked ureter. Some people find that gentle walking helps the stone shift, though this is anecdotal rather than clinically proven. Avoid lying completely flat on your back if it worsens the pain. The waves of colic will come and go regardless of position, but finding a comfortable arrangement between episodes helps you rest and recover.
Acupuncture as a Supplemental Option
A 2024 randomized trial tested acupuncture against sham treatment in emergency department patients with suspected kidney stone colic. At 10 minutes after treatment, 64% of acupuncture patients achieved at least a 50% reduction in pain, compared to just 17% in the sham group. By 30 minutes, 86% of acupuncture patients responded versus 31% with sham treatment. Acupuncture also reduced the need for injected painkillers by about 26%. This is a single trial and not yet standard practice, but the results suggest acupuncture could offer rapid supplemental relief for people open to it.
Managing Pain After a Procedure
If your stone required surgical removal or a procedure to break it apart, you may have a ureteral stent placed temporarily. Stents keep the ureter open while it heals, but they commonly cause discomfort, bladder irritation, and a persistent urge to urinate. Over-the-counter anti-inflammatories are the first line for stent-related pain. Your doctor may also prescribe a muscle-relaxing medication similar to what’s used for stone passage, which helps reduce the spasms the stent triggers.
While you have a stent, avoid lifting anything heavier than about 10 pounds (roughly a gallon of water) for the first few days. Hold off on sexual activity for at least a week after placement. Most stent discomfort improves within a few days as your body adjusts, though some irritation typically persists until the stent is removed.
When Pain Signals Something More Serious
Most kidney stones pass on their own within days to a few weeks, but certain symptoms mean the situation has escalated. A fever alongside kidney stone pain suggests infection, which can become dangerous quickly. Producing much less urine than normal, or urine that becomes very dark and concentrated, may indicate a serious obstruction. Pain that you simply cannot control at home with medication also warrants urgent evaluation. Any of these signs means you need emergency care rather than continued home management.