If the infant’s nose is blocked by secretions, the secretions should be cleared, and colds can be treated with saline nasal spray, and consult a doctor if necessary. 1. Secretion blockage: infant nose, need to check whether the nasal cavity is blocked secretions, if there is thin nasal or milk stains blocking the nasal cavity, you can use cotton swabs or infant nasal aspirator to clean up secretions. 2. Colds: If your baby’s nose is not working if it is caused by a cold, you can use physiological sea saline nasal spray to rinse the nasal cavity and relieve the symptoms of nasal congestion and runny nose. The baby’s nose, accompanied by poor spirit, less milk, low crying, or fever, should be timely to the hospital, the baby is small, many diseases are not typical, the need for doctors to comprehensive judgment.