Period cramps happen when your uterus contracts to shed its lining, and the intensity depends largely on how much of a specific chemical messenger your body produces. The good news: several effective strategies can dial down that pain, from simple heat therapy to targeted exercise, and many work as well as painkillers.
Why Period Cramps Hurt
Your uterus produces hormone-like compounds called prostaglandins to trigger the muscle contractions that shed the uterine lining each cycle. One type in particular stimulates intense contractions, restricts blood flow to the uterine muscle, and makes the nerve endings in the area more sensitive to pain. People who experience worse cramps tend to produce higher levels of these compounds. This is important to understand because most effective remedies work by either lowering prostaglandin production or counteracting their effects.
Heat Therapy Works as Well as Painkillers
A heating pad or hot water bottle on your lower abdomen is one of the simplest and most effective options. A 2025 systematic review of 22 randomized trials involving nearly 2,000 women found that heat therapy provided comparable or slightly better pain relief than anti-inflammatory painkillers over three months of use. Even within the first 24 hours, heat matched the performance of medication.
The safety difference is striking. Across eight trials with over 700 participants, heat therapy reduced the risk of side effects by about 70% compared to anti-inflammatory drugs. Aim for around 40°C (104°F), which is what most commercial heat patches and heating pads deliver on a medium setting. Adhesive heat wraps are especially convenient because they let you move around while treating the pain.
Anti-Inflammatory Painkillers and Timing
Ibuprofen and naproxen reduce prostaglandin production directly, which is why they’re so effective for cramps specifically. The key is timing: starting the medication at the very first sign of pain, or even just before your period begins if your cycle is predictable, gives the drug time to lower prostaglandin levels before they peak.
For naproxen, the NHS recommends 500 mg as a first dose, then 250 mg every six to eight hours as needed, with a maximum of 1,250 mg per day after the first day. Always take it with food to protect your stomach. If you prefer to avoid medication entirely, the heat therapy evidence suggests you’re not sacrificing much pain relief.
Exercise That Actually Helps
Regular aerobic exercise lowers prostaglandin levels and reduces the inflammatory compounds that amplify cramping. You don’t need marathon training. A pilot trial found that sessions as short as 26 minutes, done twice a week, improved menstrual symptoms when participants worked at a moderate-to-high intensity (60 to 75% of their maximum heart rate). That’s roughly the effort level of a brisk jog or a cycling class where you can speak in short sentences but not hold a full conversation.
The sessions in the study alternated between five-minute active intervals and 90-second recovery periods at an easier pace. This interval approach makes higher-intensity exercise more manageable. The benefits come from consistent training across your cycle, not from exercising only during your period, though gentle movement during cramps can also provide short-term relief by increasing blood flow to the pelvis.
Supplements With Clinical Evidence
A few specific nutrients have shown real benefits for period pain in clinical trials.
- Vitamin B1 (thiamine): 100 mg daily was effective for reducing period pain in a well-conducted trial reviewed by the Cochrane Collaboration. This is a straightforward, inexpensive supplement widely available.
- Magnesium: Two trials found magnesium more effective than placebo for cramp reduction. Doses in the research ranged up to 500 mg daily. Magnesium glycinate or citrate tend to be better absorbed than magnesium oxide.
- Ginger powder: A meta-analysis of randomized trials found that 750 to 2,000 mg of ginger powder during the first three to four days of your cycle significantly reduced pain. In studies that compared ginger head-to-head with standard painkillers, it performed equally well. A typical protocol is 250 mg four times a day starting on day one of your period.
One trial also tested a combination of magnesium (500 mg daily) with vitamin B6 (200 mg daily), though the study groups were small. If you’re looking for a drug-free starting point, vitamin B1 and magnesium are the best-supported options.
TENS Machines for Drug-Free Relief
A TENS (transcutaneous electrical nerve stimulation) unit sends mild electrical pulses through adhesive electrode pads to interrupt pain signals. For menstrual cramps, set the frequency to 80 to 100 Hz, which is the range most effective for pelvic pain.
Electrode placement matters. If your unit has four pads, place two on your lower back at roughly waist level (covering the nerves that supply the uterus) and two lower down near the top of your buttocks (covering the nerves that supply the vaginal area). Alternatively, put two pads on your lower back and two on your lower abdomen directly over where you feel the pain. TENS units are portable, reusable, and have essentially no side effects, making them a solid option if heat alone isn’t enough.
Acupressure You Can Do Yourself
The SP6 point, located about four finger-widths above your inner ankle bone just behind the shinbone, is the most studied acupressure point for menstrual pain. In a controlled trial, 20 minutes of firm pressure on this point reduced both pain and overall menstrual distress. Participants were taught to apply pressure themselves twice daily during the first three days of their period, and benefits continued over three months of practice.
You can press this point with your thumb using steady, firm pressure. It shouldn’t be painful, but you should feel a deep, dull ache that indicates you’ve found the right spot.
When Cramps Signal Something Else
Standard period cramps (primary dysmenorrhea) start within the first few years of getting your period and follow a predictable pattern. Certain changes suggest something beyond normal cramping is going on. Watch for pain that shifts in intensity or timing compared to your usual pattern, heavy bleeding or bleeding between periods, pain during sex, or cramps that started later in life after years of pain-free periods.
Endometriosis often shows up as pain that changes in character over time along with pain during intercourse. Fibroids typically cause increasingly heavy periods alongside cramping. Adenomyosis combines worsening cramps with heavy bleeding. These conditions are treatable, but they require a different approach than the self-care strategies that work for typical cramps. If your period pain is escalating, not responding to the strategies above, or accompanied by any of these additional symptoms, that’s worth investigating further.