Little Banty, i would say that this is good news, in a way. It's certainly better news than Coryza.
Fowl pox is a little bit like Chicken Pox in humans - in that it runs its course, and then it's over. They don't become carriers or anything awful like that. In a fewish weeks, they'll be back to normal. Most of the time, the only complications are from secondary infection or the development of wet pox. So you need to keep an eye on those lesions, possibly applying iodine or neosporin (without pain killer) to keep infections from starting, and you need to check inside their mouths for signs of wet pox (appears as a cheesy-ish substance in the mouth and throat.
You can also still vaccinate for fowl pox, even though it has already started to show. A vaccine will keep the others from developing the effects of the virus, and will help the ones already affected from experiencing the full effects.
I want to give you links to more information, but my bookmarks aren't working right now (much to my frustration).

You can also still vaccinate for fowl pox, even though it has already started to show. A vaccine will keep the others from developing the effects of the virus, and will help the ones already affected from experiencing the full effects.
I want to give you links to more information, but my bookmarks aren't working right now (much to my frustration).