What should be done for nasal congestion in a one-day-old newborn?
Nasal congestion in newborns is not necessarily caused by a cold. Because infants’ nasal passages are narrow, even a small amount of dried mucus (“nasal crust”) can cause significant obstruction—akin to “traffic jam.” Additionally, if the room temperature is too low, nasal congestion may become more pronounced.

What to Do for Nasal Congestion in a One-Day-Old Newborn
Nasal congestion in a one-day-old newborn is generally attributable to either physiological or pathological causes. Caregivers should closely observe the infant’s symptoms and, under medical guidance, select appropriate and effective interventions.
Physiological Causes: The sinuses and nasal mucosa of newborns are not yet fully developed. Consequently, even normal amounts of nasal secretions may dry and harden within the narrow nasal passages—especially without external assistance for clearance—leading to nasal obstruction. To help clear such blockages, a cotton swab moistened with warm water may be gently inserted into the nostril. However, care must be taken not to insert the swab too deeply, to avoid injuring the delicate nasal tissues.
Pathological Causes: Nasal congestion may also result from a cold triggered by exposure to cold temperatures or an unsuitable environment. Applying a warm, damp towel to the nasal bridge may help alleviate congestion. If symptoms persist, mild medications may be used under a physician’s supervision—for example, 0.5% ephedrine nasal drops.
Closely monitor the newborn’s overall condition. Seek prompt medical evaluation and treatment at a hospital if necessary.
We hope this information is helpful. Wishing you a happy and healthy life!