The sound parents call huffing and puffing is usually heard by ear. This sound is usually divided into three cases: the first case: the sound from the nose, the nose is blocked by boogers caused by the nose does not ventilate and lead to poor breathing, it will be more obvious when the baby is eating milk, because his mouth is occupied, the nose is not ventilated again, it will make the sound of huffing and puffing. The second condition: it is the sound from the throat, which is caused by the child’s laryngeal cartilage not being well developed, the laryngeal tissue being soft and flaccid, the tissue collapsing when inhaling, and the laryngeal cavity becoming smaller, this sound is generally higher in pitch and is called laryngeal wheezing, and is diagnostically called congenital laryngeal wheezing. The third condition: it is a sound from the trachea, the airflow through the airway (trachea) forms a vortex, causing the airway wall to vibrate and produce the sound, the continuous roaring sound during breathing suggests that some parts of the respiratory tract are narrowed or obstructed; this sound can be described by the parents who hear it with the sound of pulling the bellows, and what the doctor hears with the stethoscope is called wheezing sound; in addition to wheezing caused by huffing and puffing, the child will also have a runny nose, coughing and other cold symptoms. In addition to wheezing, the child will also have a runny nose, cough and other cold symptoms, and in severe cases, there will be shortness of breath, difficulty in breathing, flapping of the nose, purple coloring around the mouth and other serious manifestations. Parents should carefully observe and analyze which cause the baby’s panting sound comes from.