We have a very fat, very fluffy cochin hen who constantly has a dirty rear. We can't keep this girl clean! She doesn't squat like all our others hens when she goes to the bathroom, but just stands there and lets it run down her backside. It usually helps to trim the feathers around and below her vent, but it's only a partial, temporary solution. This time around, some of the poo contacted her skin (because some feathers are missing) so she got a few small sores on her skin. I believe infection from a sore has quickly become systemic (or else she has a cold). She acts fine, but has some bubbling in her eyes. I've not seen bubbly eyes on any of our hens since they all had a bad cold several years ago. We gave her a bath, blow dried her, re-trimmed her backside, applied some Blue-Kote wound treatment, and set her up in an "infirmary" cage with a yogurt/pellet/oat mash. (As a side note: I discovered tonight that if you accidentally get Blue-Kote on your skin, you can get 90% of if off with a little rubbing alcohol! Yay!) In the past, I've used Duramycin 10 antibiotic powder in the hens' water. Would that be the best thing to use in this situation? Also, do you have any recommendations for prevention of future poo buildup? Three years of chicken baths has gotten old!