I bought my 9 BO's and 1 guinea about 2 weeks ago. They are 23 weeks old, and my guinea is about 27 weeks. I've never had chickens before. One of my girls started to get a runny nose a few days after I got them. Now she had a badly matted eye yesterday morning and could not walk properly, and 2 more has runny noses and eyes. I was told by the lady that I bought them from to give them 1cc of Tylan, and separarte the sick ones. I have, and now one of my girls has alittle bit of a swollen eye. HELP I have already fallen in love with my darlins, I'm not quit sure what else to do I'm feeding them laying pellets and crushed shells bought from the feed store, and hey for the coop and boxes. I have only found 3 really small, soft shell eggs.