I have 5 hens and 1 rooster in the coop and a few days ago I noticed 1 of my hens was coughing and and sounds like she has something in her throat. She laid a egg that was soft and mushy and not fully formed. I took her out of the coop and put her in my hospital pen. Tractor supply recommended vet rx to put in her water. I have to put the drops in her mouth cause she will not eat or drink. And today I noticed another hen coughing just not as bad. But I separated her as well. What do I need to do? Is there something else I need to give them and the rest? I really don't want to loose my girls. They look so pitiful. It's heart breaking.