Infant nasal congestion, determine whether there is a booger or a cold, can be distinguished by observing other manifestations. If the baby’s nasal obstruction is obvious without other manifestations, it is booger; if the baby has fever, runny nose, cough and other manifestations besides nasal obstruction, it may be a cold. 1. Babies who only show nasal obstruction without other manifestations indicate excessive boogers. Parents can use cotton swabs dipped in water to wipe, can also be used to cover the bridge of the nose with a hot towel, or nasal wash or saline nasal wash, to reduce the symptoms of nasal congestion. 2. If the baby, in addition to nasal congestion, has a fever, sneezing, runny nose, cough, poor appetite, depression and other manifestations, suggesting that the nasal congestion caused by colds. If the fever is more than 38.5 degrees and uncomfortable, you can use antipyretic drugs such as ibuprofen. If the symptoms are serious, should be timely pediatric consultation, complete blood test, clear cause, take targeted treatment. In conclusion, when an infant’s nasal congestion is severe, it is recommended to consult a pediatrician in time to identify the cause of the problem and take targeted treatment.