Make money. In Yinchuan, prolactinists, postpartum restorers and accompanying doctors all make money. It only takes one hour to come to the door at a time, and hundreds can be done. How many can you make a day? Yinchuan, referred to as "Yin" for short, is the capital of Ningxia Hui Autonomous Region and an important central city in northwest China approved by the State Council.