The advantages of pacifiers are that they can transfer tension and satisfy the feeling of pleasure; the disadvantages are that they create dependence, cause breast milk overflow, abdominal pain and affect the appearance of the lips. 1. Advantages: The sucking of the child’s mouth can divert tension and increase the sense of security; the sucking action can promote the sense of touch near the lips and tongue, bringing the child a happy feeling of satisfaction. 2. Disadvantages: long-term use of the soother is easy to produce dependence; the child inhaled a lot of air, easy to overflow; soothers lead to frequent peristalsis of the gastrointestinal tract, easy to cause intestinal spasms, induced by abdominal pain symptoms; soothers are easy to cause the child’s upper and lower jaw development, affecting the beauty of the lips. Therefore, parents are advised to use soothers reasonably under the guidance of specialists and avoid overuse.