I thought that too! I was actually looking at beehives instead of chickens and then realized bees were bugs. And chickens were cute and fluffy. Then I found out chickens can get bugs too! Aackk! It took my hen a month to start laying again. But the apron really helped. When I've had to bathe mine, they actually kind of relaxed in the warm water. It was nice to have a helper, but not vital.
Mine actually had a large flap. I didn't do anything with it, the part of it that died came off like a big scab. I was actually very surprised that it healed. I was going to cull her, thinking that would be most humane, but decided as long as she was fighting to live, I would try too, and I learned alot.
Good luck.