Nasal flaring may be an indication of breathing difficulty, or even respiratory distress in infants. Check for airway obstructions, and call a health care provider.
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.