Here is another installment of exTRAPaganza, our Thursday over-the-top trap series.
I have a good friend who is battling child boogers on the couch.
The PC’s wander into a damp, musty cave. Millions of tiny little spores float around the cavern. When they are inhaled, they lodge into the nasal passages of the characters and incubate for 1d4 days. When they come alive, they form a mature green slime that starts out inside the PC’s nasal cavity.