Pacifiers are simulated pacifiers that are mainly used in cases where the child likes to fall asleep on the mother’s nipple at bedtime. Two-month-old babies can use soothers, but should try to minimize the time of use of soothers, if the use of soothers for a long time, it is easy to lead to the development of dependence, not only in the process of sleep need to be used, and even during the daytime playtime to use soothers, time is likely to affect the development of the jawbone, resulting in the lips protruding forward, affecting the five senses. It is best to delay the use of soothers until after 6 months of age.