ringworm

Feeling overwhelmed, my whole flock is affected by scaly skin on their combs and faces. Some of them have now lost feathers and their scalps have thickened. I want to know if anyone can give me a second opinion on the photos I will attach. Has anyone treated favus successfully? How long did...

Wondering if anyone else had had a hen with this kind of skin lesion? The grey bald area had been present for a few months - doesnt seem to be bothering her but has been traumatised by another hen or possibly her a couple of times in last month or so. It now intermittently bleeds then scabs...