Period cramps are caused by natural chemicals called prostaglandins, which build up in the lining of your uterus and force the muscles and blood vessels there to contract. Prostaglandin levels peak on the first day of your period, which is why cramps tend to be worst right at the start and ease as bleeding continues and the uterine lining sheds. Nearly every effective remedy works by either reducing prostaglandin production, relaxing the uterine muscle, or both.
Take an Anti-Inflammatory Early
Over-the-counter anti-inflammatory painkillers (NSAIDs like ibuprofen and naproxen) work by directly lowering the amount of prostaglandins your body makes. That makes them more targeted for cramps than acetaminophen (Tylenol), which doesn’t have the same anti-inflammatory effect. The key is timing: take your first dose as soon as you feel cramps starting, or even just before your period begins if you can predict it. Waiting until pain is severe means prostaglandins have already triggered strong contractions, and you’re playing catch-up.
If you choose naproxen, a typical approach is a larger first dose followed by a smaller dose every six to eight hours as needed. Always take it with food to protect your stomach. For most people, one or two days of use is enough to get through the worst of it.
Apply Heat to Your Lower Abdomen
A heating pad, hot water bottle, or adhesive heat wrap placed on your lower belly is one of the simplest and most effective options. A 2025 systematic review of 22 randomized trials found that heat therapy provided pain relief comparable to, or slightly better than, NSAIDs after consistent use. More striking: heat carried roughly 70% fewer side effects than anti-inflammatory medications across the studies reviewed.
You can use an electric heating pad at home, a microwavable grain bag, or stick-on heat patches when you need relief at work or school. There’s no single “ideal” temperature, but comfortably warm (not hot enough to redden skin) applied for 15 to 30 minutes at a time is a good starting point. Combining heat with an NSAID is a reasonable strategy on your heaviest day, since they work through different mechanisms.
Move Your Body
Exercise is probably the last thing you feel like doing when cramps hit, but physical activity consistently reduces menstrual pain in clinical trials. Both low-intensity options (yoga, stretching, core work) and higher-intensity exercise (aerobic dance, running, cycling) show benefits. Studies lasting eight to twelve weeks found meaningful improvements in pain scores, suggesting that regular exercise across your whole cycle, not just during your period, makes a difference over time.
One small trial tested 45 minutes of aerobic exercise five days per week and found a significant drop in pain. That’s a high bar, and you don’t need to hit it exactly. Even a brisk 20-minute walk or a gentle yoga session on the first day of your period can increase blood flow to the pelvis and prompt your body to release its own pain-relieving endorphins. The habit matters more than the intensity.
Try a TENS Device
A TENS (transcutaneous electrical nerve stimulation) unit sends mild electrical pulses through sticky electrode pads on your skin. These pulses interrupt pain signals traveling to your brain and can also prompt your muscles to relax. Small, portable TENS devices designed for period pain are widely available without a prescription.
In clinical settings, electrodes are placed on the lower abdomen or lower back, and sessions typically last about 30 minutes. You control the intensity yourself, turning it up until you feel a buzzing or tingling sensation that’s noticeable but comfortable. TENS won’t work for everyone, but it’s drug-free and has very few side effects, making it worth trying if you prefer to avoid medication or want something to layer on top of other remedies.
Consider Magnesium and Omega-3s
Two supplements have the most promising evidence for cramp relief. Magnesium helps muscles relax, and small studies suggest that 150 to 300 milligrams per day can reduce cramp severity. Pairing magnesium with vitamin B6 (around 40 milligrams) may work better than magnesium alone, based on a trial using 250 milligrams of magnesium with B6.
Omega-3 fatty acids, the kind found in fatty fish and fish oil supplements, appear to lower prostaglandin production at its source. A trial of young women taking 800 milligrams of combined EPA and DHA five days per week found meaningful pain reduction. When researchers combined omega-3 supplementation with regular aerobic exercise, the effect was even larger: more than a 25% drop in pain scores compared to controls. If you’re looking for a dietary approach, increasing your intake of salmon, sardines, or a quality fish oil supplement is a reasonable place to start.
Adjust How You Sleep
Cramps often feel worse at night when you’re lying still and have nothing to distract you. Sleeping in the fetal position, on your side with your knees drawn up toward your chest, allows your abdominal muscles to relax rather than stay taut. That relaxation can reduce the intensity of lower abdominal cramping. There’s no large clinical trial proving this works, but the mechanical logic is sound, and many people find it noticeably more comfortable than sleeping flat on their back or stomach. Pairing the fetal position with a heating pad tucked against your belly can help you fall asleep on rough nights.
When Cramps Signal Something Else
Normal period cramps are uncomfortable but manageable. Pain that stops you from going to work, school, or carrying out your daily routine is not something you should just push through. According to Johns Hopkins Medicine, severe pelvic pain with periods is a hallmark symptom of endometriosis, a condition where tissue similar to the uterine lining grows outside the uterus.
Other signs that your cramps may have an underlying cause include pain during sex, pain with bowel movements, chronic pelvic pain that persists even between periods, and difficulty getting pregnant. Endometriosis affects a significant number of people and can only be definitively diagnosed through a minor surgical procedure called laparoscopy, but your doctor will typically try conservative treatments first. If your cramps haven’t improved with NSAIDs, heat, and lifestyle changes, that pattern itself is a reason to get evaluated.