I just noticed today, that my broody hen had a runny nose in one nostril. She also has splotches of white on her pinkish earlobe. She's a Red Star. I cleaned out the coop of poop and dust which had been there for several weeks and checked her again. The runny nose was gone. Should I quarantine her from the others, or do chickens get stuffed up like we do? Why does her earlobe have white on it? I did just add 5 new pullets to the flock. They were quarantined and are quite healthy so I don't think that would have anything to do with it. Thanks for any help!