It is summer, and it is hot and humid, and these things will happen. In case everything else has failed, or if you just don't feel like messing around this time, this is a tried and true way to deal with yeast.
Boric acid (keep it in a safe place, it is also, after all, rat poison) (do NOT ingest, ever)
Clear capsules (size 0)
Fill capsule by scooping the powder in. You know where to put it. Twice daily, or just at night, for 3-7 days. 3 days usually does it, but stubborn cases may need 7 days to be sure of resolution.
That's it, these should both be available at a pharmacy, though, like gentian violet, you may get raised eyebrows when you ask for them; you will need to go see the pharmacist and request them, most likely.