i think my flock has mg but the tylan injectable is not doing its job. so now im wondering if it might be coryza. what is the best antibiotic to use for an all around im not sure sickness? i lost one last night that i had been treating for a week i wouldnt know if they smell or not. my sniffer doesnt work that well. they have the eye bubbles, swollen eyes, matter in eyes and nose. heavy breaths, i clean their beaks and eyes and they can see for a little bit but its right back on in a hour or so. eyes very red. very thick secretions i THINK i saw blood on one of them when i was wiping his nose. i also have 26 new babies in the house not sick, yet.