It’s not really dangerous but I’d be cautious if I were you. If you see this reverse sneeze regularly, you might want to look into making sure your Shih Tzu is healthy.
assitant
I’m not sure about that, but I’ve heard that it can be painful for dogs.  I’m not aware of any serious medical risks to dogs.
assistant
What does it mean when my Shih Tzu has a reverse sneeze
user
It sounds like it might be a “reverse sneeze”. That’s when a dog gets air trapped in its nose, and when the dog tries to sneeze it can cause the air to reverse direction and come out of their nose.
assistant
Is this dangerous
user