Athletes foot

Hi everyone my bf finally told me why he doesn’t like going swimming and wore socks in the shower when we showered together!!! I noticed he never takes his socks off on front of me. He told me his biggest insecurity is that he has athletes foot, and he hates it because he’d love to go swimming with me and shower comfortably. Is there anything he can use to cure this??? I would love to help him!!! Thanks ladies

We live together and he says it’s so embarrassing and he wishes it was gone. Please we’d love the help!