Hello dr Im a male married, my wife just got

Patient: Hello dr. Im a male married, my wife just got a fungus on the outer part of her vigaina but im very healthy no issues with my health im very clean. Why would she get a fungus like a pimple that itches and burns her. We have not had sex for over a week but all of a sudden she has it waht cuased it, this is her first time getting it

Doctor: