Hi Diana,
How much does he weigh?
What mg tylenol?
Is he doing this:
http://www.youtube.com/watch?v=lG5k9XVlh3c
Thanks,
Terri
Dear Diana,
That is a reverse sneeze. It is not serious. Its similar to a human clearing their throat.
http://www.petplace.com/dogs/reverse-sneezing-in-dogs/page1.aspx
He may have a piece of grass in his nose or dust. Or he could have an oral issue. Check in his mouth for any abnormalities - roof, under tongue, between teeth and cheek pouches.
Get little noses pediatric nose drops for him.
I am concerned about the tylenol as he only weighs eleven lbs so I would mention it to his vet.
Please let me know how he is doing. I hope he will be fine.
Warmest best wishes,
Healthcare Expert
Expert in canine health and behavior. 20 years of experience with dogs