that is the nasolacrimal duct that drains tears from your eyes into your nose. when you peel onions your eyes will water and your nose will run. when you cry your nose will run. this duct goes two ways so it is possible to have air come through when you blow your nose. this is innocent and there is really nothing you can do to correct this normal phenomena unless you want a surgeon to close this duct. then of course the tears will run down our cheek. not a good solution. though it's rare it is possible for air to come out through there. the reason why is because the tear ducts are actually connected to the top of your nasal cavity. normally when you cry some of your tears actually flow down into your nose - one of the reasons why our noses run sometimes when we cry. since it's all connected anyway you probably just have slightly larger passages between the two areas.
air comes out of my tear duct when i blow my nose. its been happening for a few months now but when i laugh or blow my nose air comes out on my right tear duct. what causes that? why is there air or anything coming out out my eye other than tears and eye boogers? its a little uncomfortable and i would love to know why this is happening. thank in advance!