Fowl pox?

[angeru]

I can't tell, is this just a scab or is it a disease like chicken pox? I've never had my chickens get sick so I'm worried.
I am pretty sure the large one in the middle is a scab (I think I could easily pick it off) but the rest look a bit odd to me.
Sorry about the pictures being blurry, she doesn't like to stay still.

 

[Wyorp Rock]

Looks like injury to me.
Could be from rubbing against wire or even a little spat with another hen.

 

[kurby22]

Looks more like injuries to the comb

 

[angeru]

She does tend to pick fights she can't win so injuries would make a lot of sense. Thanks for the replies