I’m not seeing the bubble, but I’m on mobile, sometimes hard to make out in pics. Where are you seeing a bubble?
I used to breed lav orps. I had one hatch with a bubble on her neck/shoulder. She scratched it so badly, she did rip the skin. I separated her with one friend, used some neosporin on it a few times and it healed just fine. She grew up to be a happy hen.
Another male developed a bubble on the back of his head which also cleared up on its own. I did nothing to it. Was debating draining it, but within a few days, it was gone. Not sure if it’s something with them or what, but I never had the issues again, with the LOs or any other breed.
How’s the leg issue? I had to cull a few LOs with hip issues. It was usually larger chicks that seemed to get positioned incorrectly while incubating.