Moxibustion for Patients with Primary Dysmenorrhea at Different Intervention Time Points: A Randomized Controlled Trial.

Purpose: To investigate the effectiveness of moxibustion at different times of the menstrual cycle for patients with primary dysmenorrhea (PD).

Patients And Methods: Participants were 208 patients allocated to three controlled groups: one pre-menstrual treatment group (Group A), one menstrual-onset treatment group (Group B), and one waiting-list group (Group C). Groups A and B received the same intervention of moxibustion on points SP6 and RN4 but at different times.