Period cramps respond well to several proven strategies, from over-the-counter painkillers and heat therapy to regular exercise and targeted supplements. Most people get the best results by combining two or three of these approaches rather than relying on just one. The pain itself comes from hormone-like chemicals called prostaglandins that trigger uterine contractions to shed the lining each month. When your body produces too many prostaglandins, those contractions become stronger and more painful.
Why Period Cramps Happen
Your uterus contracts during every period to release its lining. Prostaglandins drive those contractions, and the amount your body makes varies from cycle to cycle and person to person. Higher prostaglandin levels mean harder contractions, reduced blood flow to the uterine muscle, and more pain. This is why cramps tend to be worst in the first 12 to 14 hours of your period, when prostaglandin release peaks, and then gradually ease over the next day or two.
Over-the-Counter Pain Relief
Anti-inflammatory painkillers (NSAIDs) work by directly lowering prostaglandin production, which makes them more effective for cramps than acetaminophen (Tylenol), which doesn’t target inflammation. A large network analysis comparing common options found that ibuprofen and diclofenac were the most effective, followed by ketoprofen, naproxen, and then aspirin, which performed significantly worse than the others.
Timing matters more than most people realize. Taking an NSAID at the very first sign of bleeding or cramping, rather than waiting until the pain builds, gives the drug time to suppress prostaglandin production before it peaks. If you consistently wait until cramps are already severe, you’re essentially playing catch-up against a wave of inflammation that’s already underway.
Heat Therapy Works as Well as Painkillers
A heating pad or hot water bottle on your lower abdomen is not just comforting. A 2025 systematic review of 22 randomized trials involving nearly 2,000 women found that heat therapy provided pain relief comparable to NSAIDs, both within the first 24 hours and over longer treatment periods. The review also found that heat carried about 70% fewer side effects than anti-inflammatory drugs. That makes it a particularly good option if painkillers upset your stomach or if you prefer to limit medication use.
Adhesive heat wraps that stick to your underwear or clothing let you use heat therapy discreetly while going about your day. A warm bath works too, with the added benefit of relaxing surrounding muscles in your lower back and hips.
Exercise Reduces Pain Over Time
Moving your body during cramps might sound counterintuitive, but regular exercise is one of the most effective long-term strategies. A randomized trial comparing aerobic exercise and yoga, each done three times per week for two menstrual cycles, found that both approaches significantly reduced pain severity, menstrual distress, and anxiety. Both also improved blood flow to the uterus, which helps counteract the restricted circulation that makes cramps painful.
The key word is “regular.” A single workout during your period may help a little through endorphin release, but the real benefit comes from consistent activity across your entire cycle. Walking, swimming, cycling, or a yoga routine all count. You don’t need intense sessions. Three moderate workouts per week appears to be enough to see measurable improvement within a couple of months.
Magnesium Supplements
Magnesium helps muscles relax, and the uterus is a muscle. Small clinical studies suggest that 150 to 300 milligrams of magnesium daily can reduce cramp severity. One study found that combining 250 milligrams of magnesium with 40 milligrams of vitamin B6 was particularly effective.
Not all forms of magnesium are equal. Magnesium glycinate absorbs better and tends to be more effective for cramps than cheaper forms like magnesium oxide, which is more likely to cause digestive issues. Starting at the lower end, around 150 milligrams per day, minimizes the chance of loose stools, the most common side effect. You can take it daily throughout your cycle rather than only during your period.
TENS Devices
A TENS (transcutaneous electrical nerve stimulation) unit sends mild electrical pulses through adhesive pads placed on your skin, typically on your lower abdomen or lower back wherever the pain is concentrated. The electrical signals interrupt pain signals traveling to your brain and may also stimulate your body’s own pain-relieving chemicals. Clinical trials have shown TENS to be more effective than placebo for period pain, and portable, battery-powered units are widely available without a prescription. It’s a useful option to layer on top of heat or medication, especially on heavy pain days.
Combining Strategies
The most practical approach is stacking several methods together. Taking ibuprofen at the first sign of your period, applying heat to your lower abdomen, and keeping up your exercise routine through the week gives you three different mechanisms of relief working simultaneously. Adding daily magnesium glycinate across your cycle addresses the problem from a nutritional angle as well. No single approach eliminates cramps entirely for most people, but combining them often brings pain down to a manageable level.
Signs Your Cramps May Need Medical Attention
Normal period cramps are uncomfortable but tolerable. They shouldn’t force you to miss school, work, or daily activities on a regular basis. Cramps that don’t respond to over-the-counter painkillers, that start several days before your period and extend well after it ends, or that get progressively worse over time can signal an underlying condition like endometriosis or fibroids.
Other patterns worth paying attention to: pain during sex, pain with bowel movements or urination, significant fatigue or nausea during your period, and difficulty getting pregnant. Endometriosis affects roughly 1 in 10 women of reproductive age, and it takes an average of seven years to diagnose, partly because many people assume severe cramps are just something they have to live with. They’re not.