First of all, let the baby develop a sleeping position of lying flat. Newborn babies develop the habit of lying flat, which is the premise to avoid the baby's ears from being plastic. Otherwise, it will often take a lot of effort in the early stage and it will have no effect. Secondly, the new mommy massages and shapes the baby with the middle finger, the index finger and the thumb along the contour of the ear. Remember not to drag the baby out all the time, it is easy to form a' windward ear', which is ugly. After sticking to plasticity for a few days, compare the two ears.