48 days of newborns sometimes cough a few normal?

Newborns sometimes cough a few times may be poor air quality, when stimulated by cold air or dry air, it will cause cough. Secondly, the baby has physiological gastroesophageal reflux, throat reflex is more sensitive, and occasionally cough. Both of these conditions are normal, but if the baby is also accompanied by eating less, crying less, moving less, shortness of breath, fever and other phenomena, it needs attention, it is likely that neonatal pneumonia has occurred, this situation is abnormal.