The first thing you need to do is to increase the amount of milk you feed your child, if you don’t stop feeding, your mental state is good and your milk intake is normal, most of the time this is due to insufficient milk. 3 months old or less has a rapid growth and development, the amount of milk you eat is relatively high, and there will be a case of non-stop feeding, you need to increase the amount of milk you feed your child in a timely manner, in order to prevent malnutrition and other situations. Once again, we need to add complementary food to the child, this situation is often seen after 4-6 months, simple milk can not meet the needs of growth and development, we need to add complementary food in a timely manner, such as eating rice flour or rice paste and so on. If you simply breastfeed, because the density of milk is relatively low, the solid unit density is higher, so it is necessary to add complementary food in time.