(Pro Tip) If you have particularly severe menstrual cramps, try this compress!

The cause of menstrual cramps is either hormones or uterine contractions and

It worsens due to reduced blood flow to the pelvis. Hormonal issues are difficult to improve quickly, but they say infrared heat therapy is good for muscle contraction and blood flow problems!

I use the HiloBeam near-infrared heating pad. Unlike regular heating pads, perhaps because it uses near-infrared rays, it feels like it warms me deeply all the way to the inside, rather than just warming the surface!

Don't just take medicine and endure the pain of menstrual cramps.
I recommend using a good quality hot compress!