I don't know.
This is a new procedure!
You can look up ENT's that are trained and certified to do it here... (unfortunately there are no ENT's near me yet that do it)
http://www.acclarent.com
I've seen people stick snakes, worms, strings, etc. in their nose and out their mouths.
I think I can stick a ballon through and have my wife blow it up.
If I can find a package of the skinny ballons clowns make animals with, the whole procedure would only cost a couple bucks.What do you think?