I would encourage you to get a prescription from your doctor for Fluconazole to take in your medical kit. Last year on a Grand Canyon trip seven out of sixteen of us got Tolio and mine was by far the worst case. Tolio is a trench foot-like foot fungus. It started on day 6 and I could barely walk for the remainder of the trip. This year I took a prescription of Fluconazole with me on my Grand Canyon trip and on day 12 when the symptoms started, I took a 150 mg tablet and it started improving the next day and cleared up. As a side note, I put on anti-fungal cream every night on both trips beginning on day one.
Don't forget that "...the principal business of life is to enjoy it." (Samuel Butler)
and (when you don't get the camp you're pushing for):
"You don't always get what you want...but if you try, sometimes, you get what you need."
(Mick Jagger/Keith Richards)