If an infant does not eat a pacifier, it may be easier to soak the pacifier with milk or replace it with a softer pacifier and let the infant touch it again. Because babies like to suck, when they can get their physical satisfaction from a pacifier or bottle, they will enter an expanded stage of oral appetite, sucking on everything they can reach, such as their own little hands or other things around them. Soothers in general can replace these things and reduce the amount of unhygienic things being sucked into the infant’s mouth, while also giving the infant psychological satisfaction and increasing the infant’s sense of security and reducing crying. For infants, the appropriate use of a pacifier has an auxiliary soothing effect. However, some babies may not accept the pacifier and want to continue to eat their own hands or small things around them, so you can choose a soother that is slightly softer and more similar to the baby’s usual bottle or mother’s nipple. Then soak the soother slightly with the baby’s usual milk or breast milk, or formula. The use of soothers for infants can have some developmental benefits, but don’t rely too much on them because using them for a long time may affect the baby’s dental development. Therefore, they can generally still be used within 2 years of age, but if they are over 2 years old, they are no longer recommended.