Place your thumbs on your arches, wrapping your hands around your feet. Gently press and rub the tender spots on your arches for five minutes.
These pressure points stimulate your brain to produce pain-killing endorphins while dilating pelvic blood vessels to improve blood flow and flush out inflammation-triggering hormones. The same pressure on your belly would cause more pain, since those tissues are already tender and inflamed. ivillage.com