Of course your head would not explode, as the pressure is way too low for that. Part of the air will leave through your tear ducts (yes, it will blow right out of your eye and you will feel it on your eyeball). But due to the very small diameter, the flow of air will be very limited.
Another part of the air will travel through the Eustachian tubes and into the inner ears, giving you the inflated sensation that you feel when climbing rapidly in a plane. (And opposite to what you feel when diving rapidly into water.)
But the air has no way to escape through that route because the eardrum seals the inner ear form the middle ear. So if you sneeze too hard, you may actually tear one or both eardrums; That will severely affect your ability to hear, but I understand that the eardrum will frequently heal completely in a few days. (I may be wrong about that, though).
Actually the question is a very valid one.
Of course your head would not explode, as the pressure is way too low for that. Part of the air will leave through your tear ducts (yes, it will blow right out of your eye and you will feel it on your eyeball). But due to the very small diameter, the flow of air will be very limited.
Another part of the air will travel through the Eustachian tubes and into the inner ears, giving you the inflated sensation that you feel when climbing rapidly in a plane. (And opposite to what you feel when diving rapidly into water.)
But the air has no way to escape through that route because the eardrum seals the inner ear form the middle ear. So if you sneeze too hard, you may actually tear one or both eardrums; That will severely affect your ability to hear, but I understand that the eardrum will frequently heal completely in a few days. (I may be wrong about that, though).
So no, the question was not a silly one at all.