I've had fowl pox last year (very wet Summer), it cleared up nicely, just left it alone & I sprinkle/toss granules around their enclosure (they do not free range) & into the neighbors brush. This year it's been pretty dry so not so much of an issue but here in Hawaii it's "tropical" & when we get our "40days & 40 nights" of rain, it's horrible.
I do preventative, got Citronella plants around their Enclosure & sprinkle granules, I'm aware how sensitive birds respiratory systems are. I've seen (not here) how bad the Pox can be, I was just wondering if there was anything out there....