Girlfriend Keeps Getting Thrush How Can I Prevent Balanitis?

How can i prevent balanitis? - girlfriend keeps getting thrush

its really hacking me off, I get.
I wash every day.
i wash and dry your genitals after sex, pretty sure that my girlfriend did not thrush.
Ive tried hydro cortical zone works, but his face covered at all times
In the uncut and take antibiotics for acne, I know that can get worse.
I know this is not an STD, I am a nurse, I'm pretty Clued up.