He's true about OTC fungal creams, but this is complicated because it's around her eye (and difficult not to get cream in) and because it's so large. If even one molecule of fungus remains that you don't get the cream on, it'll flare back up. You may end up needing to do an oral antifungal, which is what we've had to do in the past.
We are as gods to the beasts of the fields. We order the time o' their birth and the time o' their death. Between times, we ha' a duty. - Terry Pratchett.
"Men have forgotten this truth", said the fox, "But you must not forget it. You become responsible, forever, for what you have tamed. - Antoine de Saint-Exupéry