here is a picture of the swollen joints.
the redness doesn't show up as much in the pictures, but you can see some of it.
I don't see any leg mites, but I have an untrained eye
Here I just circled the swollen spots.
I'm no expert, but IMO not likely mites.
Are those toe joints really swollen or tender? Those areas could just be lost scales and look like just those over the toe joints are involved - do the areas under the lost scales look like new scales?
Is there any tenderness or swelling in the inter web skin and how long has she had it. Does she walk normally or sit more than usual?
I have seen some redness in the interdigital webs on some of my hens occasionally that resolves without treatment - I think symmetrical infection would be unlikely.
But it wouldn't hurt to treat topically - diluted beta dine soaks? And watch the red areas closely, if they expand, look worse or fail to resolve in a few days, then antibiotics and benign scaly leg mite treatment would be what I would do.
How is she doing?
Glad she's no worse and understand the limits of the weather. Had hoped you would see some improvement in the red areas, but no worse is is optimistic.
Also had hoped by keeping the thread going would get more attention and input.
Do you have a local Agriculture Extension Office Agent? If you do, call them with the issue and see if they have access to a Poultry expert - they would let you email the photo to the agent to pass along for real expert opinion. Ours has been quite helpful in the past, but they will only offer services to local areas.
If you see anything worse, add a new pic.
Bet the redness was "small scale" shedding as well?
So glad she is better. I know what a relief that is to you.