Is this coccidiosis or something else?

[QuailCreekFarm]

Hello,

My silver-laced Wyandotte is about 3 years old. Lately she has been listless, with a sunken head, runny/smelly vent, and not interested much in eating/drinking. I thought it was coccidiosis, and we have been giving her sulfamethazine sodium for a few days, but she doesn't seem to be improving. I'll continue on the medication for a few more days. What else could this be? Should I try a different medicine? Thanks for any and all responses!

 

[dawg53]

Here's a very similar post, check it out if you get the chance, it should help.
https://www.backyardchickens.com/forum/viewtopic.php?id=470155

 

[QuailCreekFarm]

Thanks for the help. I checked to see if she was egg-bound and discovered she was bloated in her belly and crop. I now think she has sour crop. So, switching to a new treatment.