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Dr. Nicolina Wawrin

There are several reasons why a baby might come down with a runny nose, ranging from illnesses to allergies and more. “The main causes of runny nose in children are viral infections, bacterial infections, and environmental allergies,” says Nicole Wawrin, MD, a pediatrician at ������ɫ. “Overwhelmingly, viral infections are the biggest culprits of a runny nose in children.”