my 3month old baby has tears and yellow pus like discharge in left eye ..eyelids become sticky when he wake up from sleep.is it a cause of concern?

A. Eye discharge in newborns is common and often the result of a blocked tear duct. The blockage will usually clear up by itself within 4 to 6 months. However, newborns with eye redness, eye discharge, or excessive watering from the eyes should see a doctor to diagnose the cause and to rule out an eye infection.