OK, read some of the information on your site. Apparently chickens can get viruses, but not "colds". She seems very normal otherwise, is actually the only hen laying at the moment. This is her first season to lay however. Any recommendations? Considering putting some antibiotics in water for a few days to ward off something bacterial. Other hens are fine. She does have some dirty feathers in her beard on throat region that is new. Thanks
You will not know which antibiotic might be helpful unless you learn through lab testing what their problem is. And the antibiotic will of course not cure a viral disease, it will only reduce symptoms at best. I would suggest you contact your local ag college, county extension agent ior state vet office to find out where you can have testing done.