I have a hen who is sitting on a clutch of eggs, approx.15 days into incubating. It was really cold outside when I found her on her nest under a bush, so I brought her and the eggs inside in a box of shavings and put them in the extra bedroom. This morning, I heard what I thought was my dog snoring -- but to my horror realized it was the little brooding hen making gurgly breathing. I dripped Tylan-laced water into her mouth (I also have Baytril but I think she has myco. gallisepticum), but I think I read somewhere that myco. gall. will go through the egg shells and infect the chicks in the eggs? Is there a way to treat the chicks in the eggs for this? Maybe I was imagining it, but I swear I read something, somewhere, about dipping the exposed eggs in something to treat the chicks while they're still incubating. Or do I have to wait until they hatch? Or are they never going to hatch now because the myco. gall. is going to kill them in the shell? Any thoughts would be super appreciated.