I treat with corid when I see this.Baby 7 out of the silkied Cochins seemed unwell this morning. He's lost weight (which is scary, not much weight to be lost on a little guy like that!) and his little comb is wilty, and he seemed to just want to hunch in the corner. I thought at first that it was coccidiosis, but he has none of the textbook symptoms other than hunching, which they do when they feel sick in general, and none of the other chicks are unwell.
On closer inspection, it would appear he's having an issue with his tongue. It keeps falling back down his throat. This is the second time I've had a chick do this at about the same age and for no apparent reason. The first one was Vander, known as Vida at the time because I thought he was a pullet. I fortunately know how to tube feed efficiently now, so I don't have to try and spoon feed this little guy like I did with Vander. I tubed fluids into him this morning to start, and he perked up almost immediately and began trying to peck with the other chicks at the spilled feed on the floor of the brooder, so I'll take that as a good sign.
Not sure what's causing the issue, though. Hopefully, like Vander, this guy will eventually grow out of it and become self-sufficient with eating again.
Everyone else is happy and healthy near as I can tell! The little no-leg-band Barred Rock bantam had me a bit concerned yesterday because she was a bit noisy and felt a bit lighter than the others, but I showed her the food and she's picked up on the concept of eating and is catching up with the other now.
It can't hurt them and often saves them. Tube feed some of the corid treated water a couple times a day.
Sometimes one will get very sick while the others do not show symptoms. I go through the complete two week treatment regimen for all of them.