Help! Chicken injured!

[Chikyboy]

Can you give some details of what happened and age? It looks like a pecking injury done by a rooster or larger chickens. It can be common when one is suddenly added to an older flock without first introduction behind fencing, or from an aggressive rooster. Clean it with chlorhexidene, apply plain antibiotic ointment twice a day, and separate in a dog crate with food/water until it heals.

I put chlorhexidene on it

 

[Chikyboy]

I recently saw that she has some blood on her chin, indicating she may have gotten her head stuck, pulled it out, hens saw a bit of blood, and they started pecking away.

 

[Eggcessive]

They will peck anything red, but they also will peck the back of the neck when bullying.