ThermaCare Menstrual Heating Pads – Portable, Adhesive HeatWraps for Period Cramps & Backache Relief, Discreet, Cord-Free Heat Therapy, Up to 8 Hours of Relief – HSA/FSA Eligible, (6 Count)

Firstly, I cannot recommend heating patches enough for when you are sore or having cramps but still need to be active and go about your life and for traveling. They lay unnoticeably under your clothes and provide pain relief for hours without needing to be with an outlet, have access to batteries, or have a bulky water bottle. The simplicity of them is genius.Secondly, is no other heating patch on the market that works as well as Thermacare's - and I've tried them all. They work the longest and provide the best heat while not shifting due to friction or movement.I love the menstrual ones but I like their neck and back ones for other types of pain - and the difference in design is actually noticeable it's not just the same patches with different sizes and shapes, they're suited to the pain types.

Been using these heating pads for years and they’ve always done the trick for me. I tend to suffer from horrible cramps while on my period. They get hot right away and I mean right away. You can literally feel the heat of the pads through any material. That includes jeans. They’re comfortable enough to the point that I forget I’m even using one unless I start rubbing my lower stomach and then feel the heat. The only downside is that they’re not sticky enough to STAY stuck on undergarments. Other than that, these do stay very warm and relieve pain for the 8 hours as stated on the packaging.

Absolutely love these. There is no smell when using. Super easy to stick on your underwear. And the heating last for a very long time. It says 8 hours on the pack but it has lasted me way longer. It is one of the only heating packs that actually helps relieve pain. All in all I always repurchase.

These have made my most painful time of the month bearable. It gives the right amount of heat and is enjoyable. It helps ease the pain and it easy to apply. Only thing that would make it better is if the size was a bit bigger.

Absolutely love these. Easy to carry in a hand bag or back pack. Work exactly as they should. Have and will continue to buy.

Expensive but would still buy

i use these all over my body, but most often on my shoulders. they last for 8-12 hours, you can sleep with them on, they lower my pain rating by at least 3 points. i love them so much i have them on auto ship, i can't live without them.

Daughter loves it but they are very expensive.