That's a good idea with the warm towels. Yes, it is tough. My BR bantam is still quarantined, but she isn't getting any worse. My neighbor, who has raised chickens for years, said is looks to be CRD (chronic Respiratory Disease).
I started her and the other bantams on antibiotics and have upped my biosecurity... something I should have done MUCH sooner. I have high hopes for her, but she has lost some weight already. She's getting lots of extra love and affection... don't know the benefit of that, but it makes me feel better!
Adam