I need some expertise here. My first year keeping ducks and I have separated this hen from the rest of the flock when I noticed she was getting over mated. I researched online and it appears to be a ruptured air sac? I attempted to reduce the swelling by applying anti-inflammatory cream and reduce the air sac by drawing it out with a syringe. However, there was blood that was drawn out and this helped reduce the swelling but only for that day. Any possible suggestions? Thank you!