Nasal congestion in babies is not always due to cold, but can be caused by many reasons. Because the nasal cavity of babies is narrow and the nasal mucosa is rich in blood vessels, it is easily stimulated by external factors, resulting in edema and exudation of the nasal mucosa and increased nasal mucus. When the baby’s nasal cavity is blocked with secretions, the symptoms of nasal congestion can be obvious, and in severe cases, it can even affect breastfeeding, causing crying and restlessness or difficulty in breathing. Allergic rhinitis can cause nasal congestion, sneezing and other symptoms, and cold air can also cause nasal congestion. Nasal congestion can also occur when you have a cold. You need to distinguish nasal congestion when you have a cold from normal physiological phenomena, keep the indoor air fresh, appropriate temperature and humidity, and drink more water, which can effectively relieve your baby’s nasal congestion. For nasal congestion caused by upper respiratory tract infections, you can take oral pediatric aminophenols for relief.