We have our queen of the flock, dorothy a barred rock that is coming up on 3 years old. This year she has dealt with pasty butt and we can’t get it resolved. Its been a rollercoaster it seems gone then comes back. Ive bathed her twice and tried yeast infection cream on her vent but she finds the baths incredibly traumatizing and its difficult to do. I used to give fermented feed but I got worried it could be causing her pasty butt so I stopped and give dry food now. She had a huge mold this fall and the pasty butt seemed to clear up entirely! But it slowly has crept back and this morning she seems to feel lethargic and her butt is so bad. I give them homemade yogurt as often as I remember, and Ive tried a little acv in their water. The other hens don’t have pasty butt, one had a very mild case but it has cleared, its just poor dorothy. Any recommendations would be so appreciated she is such a nice hen thank you so much