I have seen the same when I have looked for answers when my chickens have been ill. A while ago one of my hens got really ill, I tried everywhere, none of the vets in my area have any idea about chickens, eventually I called the place I bought them off in desperation asking which vet he used...
I have exactly the same thing in the first chicken i suspected internal hatching or a bound egg but I now suspect worms too as one by one all my chicks are showing the same signs., The poo seemed to be the first sign in mine, I was using the verm x and did not realise that it doesnt actually de...
I heard that bathing the sore area in an epsom salt bath helps reduce the inflammation quickly and then helps the skin heal, but i have had no experience of this myself.
I did not realise that the verm x de wormer wont help if the chickens have worms already so I thought I was de worming them I have som very poorly chickens and now I suspect worms, I have some de wormer on the way but have just given the chickens mash potato with lots of cayenne pepper, garlic...