I'm glad to hear she's doing better!
I know she has new feathers coming in on her head where she was wounded, but does she have more coming in elsewhere too? In the photos, it's hard to tell if she's molting (are you finding bunches of her feathers)?
If she is molting, then that can make her not feel well. Have you tried giving poultry vitamins for a boost? Poultry Cell would be good to give. Mine don't like it in their water but will take it as a direct dose (1cc per 3lbs of weight).
It does sound like she's "dust bathing" especially since she's switching sides. Chickens sometimes lay on their side and switch around when they sun bath too. Does she have access to some loose soil? Maybe see if she would enjoy that.
https://www.backyardchickens.com/ar...er-construction-check-back-for-updates.73335/