guys,we are having a serious problem and any advice helps. Our whole flock is sick puffy and full of water like liquid eyes,they are sneezing and coughing,runny nose and green mucus is coming out their mouths. We have them on oxytetracycline but it doesn't seem to help. More and more get infected every day and we lost over 5 of the little ones already. Is there anything we can do about it? We have over 20 sick right now. Some are very bad and they need to be hand fed and given water. Any advice helps.