I have a flock of 23, and most of them are my good laying hens. I've noticed that a few of my chicks are sneezing and coughing, so i'm medicating the whole flock with Tylan 50. But, how long do i have to throw away the eggs? Just while they are actively taking the medication? Or, i've heard that a month is needed after the meds are complete. I enjoy eating my eggs and i wouldn't want to poison myself, lol.