What should I do if my baby has a cold and runny nose?

Aug 21, 2026 Source: Cainiu Health
Dr. Zhou Xiaofeng
Introduction
A baby’s common cold with nasal discharge can be improved through home-based daily care, physical nasal cleansing, environmental humidity control, symptom-specific dietary therapy, and pediatric-specific medications. Infants have delicate respiratory tracts and relatively weak immune systems; thus, they are prone to increased nasal secretions, nasal congestion, and runny nose following exposure to cold or infection. If persistent high fever, rapid breathing, or other concerning symptoms occur, seek prompt medical evaluation and treatment at a hospital.

Common cold with nasal discharge in infants can be improved through home-based daily care, physical nasal cleansing, environmental humidity regulation, symptom-specific dietary therapy, and pediatric-specific medications. Infants’ respiratory tracts are delicate and their immune systems relatively immature; thus, they are prone to increased nasal secretions, nasal congestion, and rhinorrhea following exposure to cold or infection. If persistent high fever, rapid breathing, or other concerning symptoms occur, prompt medical evaluation and treatment at a hospital are essential.

1. Home-Based Daily Care: During the cold, ensure the infant gets adequate rest and minimize outdoor exposure to prevent chilling. Adjust clothing appropriately according to indoor temperature to maintain warmth and dryness—avoid drafts after sweating. Encourage frequent, small-volume intake of warm water to keep respiratory mucosa moist and support baseline physiological stability, thereby aiding the immune system in combating mild infections.

2. Physical Nasal Cleansing: Promptly remove excess nasal secretions to alleviate nasal obstruction. Use gentle techniques to clear the nasal passages and ensure unimpeded breathing. Perform cleaning with utmost gentleness to avoid injuring the fragile nasal mucosa. Regular nasal clearance helps reduce mucus accumulation and decreases the frequency of nasal congestion and sneezing.

3. Environmental Humidity Regulation: Adjust indoor air humidity to maintain moist, well-ventilated air, thereby relieving nasal mucosal dryness and congestion. Dry air continuously irritates the nasal passages, worsening rhinorrhea and nasal obstruction. Ventilate the room regularly by opening windows to refresh indoor air and reduce pathogen buildup, creating an optimal environment for infant recovery.

4. Symptom-Specific Dietary Therapy: During mild colds with nasal discharge, offer light, warm, and nourishing complementary foods. Warm soups and broths help replenish fluids and soothe respiratory discomfort. Avoid raw, cold, or overly sweet and greasy foods, which may exacerbate internal dampness and irritate the respiratory mucosa—potentially triggering recurrent or worsening nasal discharge.

5. Pediatric-Specific Medication Intervention: When nasal discharge and congestion significantly impair feeding or sleep, select age-appropriate, safe over-the-counter pediatric cold medications under professional guidance. Strictly adhere to recommended dosages and duration of use. Closely monitor the infant’s alertness, activity level, and changes in nasal discharge during treatment, and adjust the management plan accordingly.

In daily life, ensure proper warmth for the infant’s abdomen and feet; maintain a light, easily digestible diet with small, frequent meals during illness; limit visits to crowded places; and continuously observe body temperature and overall alertness—supporting rapid recovery.