Beak pecking

[BarnCats]

How long do I keep an injured beak separated.

I have 9 total chickens all 17-20ish weeks old.
I started with 4 that I raised as chicks then added 5 more 18-20 week old chicks to my flock.
Initially the 5 new chicks picked on my 4 girls but after about a week they all seemed ok and established a pecking order.
Over the last 3 days I noticed on of my original 4 making a new noise and noticed yesterday her beak was pecked and slightly bloodied. She feels light and a little out of it.
I have her separated now but I’m curious how long do I keep her separated?

 

[CindyinSD]

Keeping her apart can make the social issues worse. I have a little "hospital" coop to keep injured birds in with their coop-mates. No one can hurt them but they don't lose the familiarity with the other birds that's so important. A large wire dog crate would also work.