here is a site that can anwser all your questions. http://www.thepoultrysite.com/publications/6/Diseases_Of_Poultry it has Pictures and proper medications and dosages.
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I'm beginning to think it might be a food allergy. I'm trying to find my receipt for the last sack of feed that I bought and see if that coincides with Penny's puffy face. I live in the Northwest, and we definitely don't have chiggers here. I have checked her feathers and skin for signs of mites, and there are no red markings nor any sign of eggs on the feathers.
I really appreciate everyone's suggestions! Thanks!
Did you ever figure anything out with this. I know this is an old post. But your photo looks similar to what is going on with one of my hens. Looking for insight. ThanksMy 8month old black/araucana hen, Penny, has a swollen head that is pale. Her comb is also pale. Beyond a puffy face, she is normal in every respect (eating, drinking, foraging, etc.). Her face has been swollen for almost 3 weeks. I have been adding vitamin/probiotic powder to the hens' water for about a week now. I have done endless searching on the Internet for clues as to what she has and how to treat it, but I haven't found anything close. She does not have trouble breathing, she doesn't smell, no watery eyes or runny nose. The only difference from her and my other hens is her puffy head. Her head seems to run warmer than my other hens.
My other two black hens (same age, same brood) just started laying. We have gotten a few soft-shell eggs in the coop, and I'm pretty sure those belong to Penny. I feed my hens a local non-soy, non-corn pellet food, plus some corn scratch every once and a while, oyster shell, and then whatever they find in the yard. Their bedding is straw and wood chips that is cleaned on a regular basis.
What is wrong with my hen and what can I do?
Thank you for your help.