Swollen cloaca and other issues

[zanelee]

My children noticed this evening that our 4 year old female pekin duck has a hugely swollen cloaca. (I think) It basically looks like a very swollen, red (and bleeding some) donut.
She doesn't seem to be in any pain, so we brought her in and she had a bath. I'm planning on putting some prep h on it, but once the swelling goes down, doesn't really seem to be anything to put back in.
There's just a lot of swelling. (Unless I'm missing something somewhere)
Suggestions? Does she need antibiotics? If so, what, how and where?

Thanks for any help!

 

[zanelee]

Well, I just ran a fecal check on my duck and found whipworms and a few roundowms and a couple of mites. I am SHOCKED!
I am not well versed on bird mites, but it was similar looking to a sarcoptic mite.

I can worm her and all my flock, but what do I do about mites? There have been no symptoms, well, up until my duck's butt.
What do I look for? How do I treat?
Could this be the cause of her swollen-ness?
Thanks for any help!