Sneezing Job Interview!

Description: I looked over your resume and credentials, and i'm certain you're the right fit for this position! almost immediately after our introductions, my allergies begin acting up. i try to hold my sneezes back, but over time they get more and more relentless and just won't stop. i blow my nose over and over until it's bright red. there's no playing it off. what on earth could be causing these allergies?