Could be ammonia poisoning or anothet underlying problemCharney
I can't see the pics but just judging from descriptions I would start by keeping water 100% pristine, treat with salt and also if the lesions don't start shrinking within several days I'd get a methylene blue dip bath ready.
maracyn will work if the fish has pop eye but most likely it will go down on its own with the clean water if it isn't a serious infection. Regardless start a salt treatment.
Did you quarantine it or add it to a tank with fish in it already?
Well the way I see it you don't have much of a choice.Thanks mate, but I really don't want to put it in any of my tanks if it's ill. I don't have a dedicated hospital tank. ARGH.
So what would the likely illness be? Popeye?