OK, I haven't been able to get on here for a while, but now that I have I'm blown away.
As the owner of the chin who was actually diagnosed with the fungus, I can tell you that it does not look like ringworm to me. Now, granted, I have NO experience with ringworm in chinchillas (heck, I've never even had it), but from descriptions I've found and that have been posted on here, I doubt it is the ringworm fungus. The exposed skin around her nose is not scaly; in fact, it almost looks like her nose had a fur slip. Both she and her cagemate are on internal meds, and the "infected" chin is on a topical treatment as well. Her cagemate has shown no signs of being infected, and I have not seen baldynose (otherwise known as Nova) messing with her bald spot at all - no bathing, no scratching, nothing. Once again, granted, I'm not in the room, staring at them 24/7, but from what I understand, the ringworm fungus is extremely itchy and I would have seen some sort of scratching before now. I will continue with their treatment for the next week, and then we will see where they are. They are currently in a room inaccessible to the other animals in our house, and nobody leaves the room without sanitizing their hands (even if they DIDN'T interact with the chins).
I honestly don't know what to say about all of this drama. I'm just happy that these animals have loving homes, which is what I thought a part of this forum was about. I always come here for support, but quite frankly, I'm seeing ugly sides of people that I never wanted to see. Call me a twit if you like, but I will never regret helping with these girls.
Please, if you have good advice that has worked in the past, give it. Part of why I come here is to learn. But please remember not all of us have raised herds of 100+ chinchillas; some of us just want pets.
Thank you to all of you who have given advice. I greatly appreciate it. If this post is inappropriate in any way, please feel free to remove it.