We’ve just noticed a terrible infection on one of my chickens. It’s a large lump with a black hole in it on her neck and a second hole on her head. She doesn’t have any other spots on her comb so I’m not sure it’s pox. Has anyone seen this before? The other 2 chickens are not pullets yet so I don’t think the others are attacking her. She was eating out of my hand 4 days ago and I didn’t see anything so it has come on very quickly. I feel terrible for her! Thank you for any ideas. Photos attached are fairly graphic I’m sorry.