The following measures can be used to deal with the symptoms of children sleeping with open mouth. The first step is to give the child medications such as loratadine and cisplatin, because some children sleep with their mouths open due to very obvious nose symptoms such as nasal congestion, runny nose, sneezing, and so on. The application of loratadine and cisplatin can effectively improve the symptoms of the children’s nose, which will improve the sleeping with open mouth. Secondly, children should be operated to remove adenoids in time, because some children’s sleepy mouth is caused by adenoid hypertrophy, and at this time, children often also have snoring and adenoid face, so they should be operated in time.