That awful coryza that I'd brought home from the swap is now affecting my original flock, with five of them (out of six) showing pretty severe signs (all have rattley breathing, several have runny noses, two have pale droopy combs, and one has a closed eye). My neighbor suggested that they might pull out of it because of their age (7 mos) and because they 'had been' very healthy before exposure. He suggested that I administer the sulmet orally (because they're not interested in drinking the water at this point). He suggested 1/2 of a syringe and shooting it in each chicken's mouth. What do you think?? Is it worth a try and does that dose sound right to you?? I don't guess I have anything to lose at this point and if there is a chance that *any of them* could recover, I would be willing to just live with this flock and not introduce ANY MORE chickens to them until they end up all passing on eventually. Does this make any sense to anyone?? I just can't hardly stand the thought of killing them without trying to save them.