Acupuncture punctures period pain: study
"Our pilot study found that using manual stimulation of the needles, rather than an electrical pulse, commonly used in many Chinese studies for period pain, resulted in reduced need for pain-relieving medication and improvement in secondary symptoms such as headaches and nausea," said Dr Mike Armour, a postdoctoral research fellow at Western Sydney University's National Institute of Complementary Medicine.
https://nz.news.yahoo.com/acupuncture-punctures-period-pain-study-214932539--spt.html?soc_src=social-sh&soc_trk=fb