Anelise suffers the same thing... she only has tiny nasal passages too which makes the boogers seem enormous.

The ECHN told me to get some warm water on a cotton ball and drip it into her nose. The warm water softens the boogers and then she sneezes them out. It is awful 'cause all I can think about is that awful feeling you get when you get water up your nose, but it does work and she is always much more settled afterward because she can breathe properly.