very work!! i remember i drank for abt 2-3 times, the 1st time was on the 3rd day after delivery, and the 2nd time was the 1st day i got home.
i also drank 'chu yun' (pork liver?) water together as both can help to kill pain. i didn't feel any pain at all, just felt the breast 'guk har guk har' for a few hrs, but not painful at all.