My Itchy Athlete’s Foot Ruins my Interview and leaves me Embarrassed for Scratching them so much in front of the manager

I am at an interview to be a personal trainer but in the middle of my interview the itching of my athlete’s foot keeps bothering me and embarrassing me.i try to wiggle my toes around in my shoes. i grind my shoes on the floor and scratch on top of my shoes trying to ease that itch in my toes and yet nothing works.so i take off one sneaker and rub my socked foot on top of the other shoe. it helps with the itch a bit. then the itch gets worse so i kick off both shoes and rub my socked feet together, using my fingers to scratch between my toes, and doing all this while still trying to focus on my interview and explaining to my future manager that this is not normal and never happens like this.i feel like my interview and chances of getting this job is ruined but i play it off confidently and hope i still get the job.