skin condition home remedies needed

[Rare Breed Chick]

Our Bantam Cochin has an odd gooey skin issues going on. We've been treating our entire flock for scaly mites and we initially thought she has a build up of oil on her from perching beneath the other birds at night after they've been dipped. I've tried Epson Salt baths and wiping her gently with cotton balls but the gooey skin issues has spread from around her eyes to down her neck and now essentially her entire body.
Would a first aid triple antibiotic spray or diluted tea tree oil help this issue?
Photos are from after a bath and after I wiped the gooey skin from her face but you can see the build up of the gooey skin on the photo of her back. View attachment 4281529View attachment 4281530

Update: the bantam Cochin is much improved. The skin issue is resolving. The dust bath with wood ash appears to have been the fix. She’s still in quarantine until all the now dry pieces of former goo fall off or are preened off. She also now has a fellow quarantine friend- our silkie- who we saved from a hawk.

 

[Eggcessive]

Glad to hear that she is doing much better. Have you done anything besides the wood ash dust bath? Let us know how she continues to get along.