The reason why a month baby nose huffing and puffing, may be related to physiological nasal congestion, but also for colds, pneumonia, rhinitis and other causes. 1. physiological nasal congestion: a month baby nasal hair is very small, or even part of the baby does not exist nasal hair, can only rely on a small amount of nasal secretion to help clear the dust in the air, it is easy to form boogers, resulting in blocked nostrils, which in turn appears the phenomenon of the nose huffing and puffing. 2. Colds: a month baby body immunity is relatively poor, if parents did not pay attention to the child to keep warm, resulting in cold cold and flu, causing nasal congestion, resulting in poor ventilation of the nose, there will be the situation of the nose huffing and puffing, can be accompanied by coughing, runny nose and other manifestations. 3. Pneumonia: due to a month of the baby’s nasal cavity is more narrow, the nasal mucosa is relatively thin and tender, the nasal cavity in the presence of abundant lymph and blood vessels. If the baby suffers from pneumonia, in addition to coughing, fever and other symptoms, there may also be nasal mucosa congestion and edema, resulting in the nasal cavity becomes more narrow, resulting in poor ventilation. 4. Rhinitis: small babies with long colds may induce rhinitis, resulting in colds after the existence of nasal congestion, the nose huffing and puffing. More than a month the baby’s nose huffing and puffing, if the persistence can not get better, should be as early as possible to see a doctor, a clear diagnosis of what is the cause, under the guidance of the doctor symptomatic treatment.