Watching like a hawk and constant checking! We had a kid like this in the centre and he had paper towel stuffed up there. Must have been up there for weeks because it started to smell and his mom took him to the DR to figure out why. The DR then told her a story of another kid who stuck a bean up his nose and it sprouted and made roots in his sinuses
Scary stuff!! We watched that kid like a hawk and had to do continual checks of his nostrils.