You are correct the most likely cause of this problem is a blocked tear duct.At this stage it is important to gently massage the nasal side of left eye with your pinkie. Use a gentle rolling massaging movement.Keep cleaning his eye with a dilute saline solution [a quarter teaspoonful of salt in a cup of boiled and cooled water prepared fresh daily]. Wipe his eye from the nose side outwards and discard the swab after each wipe.If the problem persists at 3months then ask your paediatrician to refer your baby to an eye specialist.
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