I looked her over and see zero evidence of mites. There was a tiny bit more crustiness towards her vent, but nothing big at all. It does look like the crustiness is coming back on the neck as I haven't put ointment on most of her neck for a couple days.
Being able to put enough fungal cream on her several days in a row seems like a very large task it would be her whole head/neck and part of her rear. Who knows where else it might be. She's got a lot of feathers.
It's almost l like I need to give her something for her whole body. Is there anything like that available? I have done monistat in a hen's vent for several days to combat gleet. That worked swimmingly, but would that help external fungal issues?
I have done additional digging and while I can't find a lot of information about adult birds with Aspergillosis, she does seem to have some of that look to her. She does seem to have a little respiratory issue going on. My daughter also said she saw her extending her head up and stretching with mouth open the other day. But I have not seen that.
I started her on pre/probiotics/plasma protein and whatever the Flock Rescue 911 stuff is from Perdue (I think).
There are oral anti-fungal meds but those require a script.
You can try painting betadine on the affected areas, if you don’t have or can’t get betadine you can use gentle iodine. I have used that on my horses for ‘ringworm’ which is a fungal infection - no worms involved!
Use a cotton swab to paint it on the skin.
Like us our pets can become immune compromised and get sick, a bit of TLC can do wonders and it sounds like you’re on top of this. Sometimes you just have to keep trying different things to see what works. I always say as long as they are eating, drinking and pooping they hopefully should be fine.