OSAHS is a common sleep breathing disorder in children, with the same incidence as childhood asthma, and is mainly caused by upper airway stenosis caused by tonsil/adenoid hyperplasia. Clinical findings show that children with OSAHS often present rhinitis symptoms and like rubbing eyes, but there is no evidence to suggest a correlation. Children with OSAHS suffer from recurrent hypoxemia during sleep, and the existing detection methods such as lateral nasopharyngeal radiographs and electronic nasopharyngoscopy can only reflect the structural and morphological changes of the oral, nasal and pharyngeal tissues, but cannot prove their functional status. Previous studies have found that infrared thermal imaging can reflect the oral, nasal and pharyngeal inflammation of patients, and the infrared expression of patients' frontal region and eyes can also reflect the physiological changes caused by sleep deprivation.