The baby’s nasal cavity makes a nasal congestion-like whirring sound when breathing. Parents should pay attention to the inside of the child’s nose to see if there are any nasal stools, which should be cleared in time to avoid causing poor breathing. Keep the room temperature and humidity normal to prevent dry air. This condition is often considered to be caused by blockage of nasal secretions or internal changes in the nasal cavity. Common causes and treatments are as follows: 1. Increased nasal secretions: 1. Cold: Increased nasal secretions due to cold, and the baby will not blow his nose on his own, which can easily lead to the accumulation of nasal mucus in the nasal cavity, blocking breathing, and a whirring sound when the airflow is not smooth. You can take anti-viral drugs or antibiotics under the guidance of a doctor; 2. Rhinitis: in addition to such symptoms, children can also have a runny nose, sneezing and other symptoms, available saline or nasal wash to clean the nasal cavity, while applying medication for different pathogens, anti-viral drugs can be used for rhinitis caused by viruses, and anti-infective drugs such as penicillin and cephalosporin can be applied for rhinitis caused by bacteria. Allergic rhinitis can be applied to antihistamines, such as loratadine, etc. Second, internal changes in the nasal cavity: such as the occurrence of nasal foreign bodies, turbinate hypertrophy, adenoid hypertrophy, etc., can lead to breathing with a whirring sound. It is necessary to go to ENT for examination in time. 1. Nasal foreign body: it can block the nasal cavity to appear nasal congestion, mostly seen when playing, inhaling foreign body through the nose, it is necessary to seek medical attention in time to avoid suffocation, foreign body can be removed under nasal endoscopy; 2. Adenoid hypertrophy: when adenoid hypertrophy can appear nasal congestion, first of all, budesonide nebulization inhalation can be used, conservative treatment without timely surgical removal; 3. Turbinate hypertrophy. Turbinate hypertrophy is due to long-term inflammatory stimulation of the nasal mucosa caused by the turbinate mucosa edema hypertrophy, resulting in nasal obstruction, will appear the performance of breathing difficulties, surgery is the main method of treatment of this disease.