First, clean the nipple and areola with a tampon, and disinfect the protective cover of the nipple. Then, attach the protective cover of the nipple to the breast in such a way as not to touch the nipple carefully, and then gently press around with your fingers. The mother leans forward slightly, and then drops milk into the nipple head of the protective cover. In this way, the baby will drink milk, and when the baby sucks the protective cover, it will be close to the breast and used normally. If the milk is not enough, you may not be able to use the Beiqin nipple protection cover. Fill it with milk before use, and be careful not to block the vent with your fingers. And remember to clean it in time after each use.