If a baby has a snuffling sound when sleeping, it is likely that the child has a cold and is suffering from this condition. Sometimes it is due to sinusitis or adenoid hypertrophy, which needs to be diagnosed by sinus CT, nasal endoscopy, fiberoptic laryngoscopy, and lateral nasopharyngeal film, and after the diagnosis is confirmed, you can consider spraying with mometasone furoate nasal spray, and taking oral nasal abdomen and orifice pellets for further consolidation treatment. If necessary, surgery can be considered to remove the hyperplastic adenoids. In life, children should be allowed to move properly to avoid colds or throat inflammation, to reduce adenoid hyperplasia and hypertrophy, and to reduce the chances of sinusitis.