Pacifiers can usually be used for a short period of time to calm the baby, but they are not recommended for long-term use, as long-term use may lead to abnormalities in the development of the baby’s oral cavity, for example. Pacifiers are a substitute for the mother’s nipple, which can be used to satisfy the baby’s need to suckle and can be used to calm the baby’s emotions, as well as helping the baby to get into a good habit of breathing through the nose. Prolonged use of soothers may lead to deformation of the baby’s mouth and may also affect oral development. In addition, prolonged use of the soother may also lead to excessive inhalation of air, which may cause gastrointestinal symptoms such as bloating and diarrhea in the baby. Parents need to be careful not to use the soother continuously for more than 15-20 minutes, and should help their baby to give up the habit of using the soother after 2 years of age. If the baby long-term use of the soother appeared adverse reactions recommended timely medical treatment, under the guidance of the doctor symptomatic treatment.