Over 2 weeks ago I noticed that "Big Bird" my 5 week old leghorn chick was sneezing and had a runny nose. I segregated him to "sick cage" and tried giving vitamins and electolytes because I didn't want to rush to antibiotics. Within a week I had another 4 sick out of 26. Runny noses, sneezing, weak, eyes swollen, basic coryza symptoms so I called the local feed store and they suggested sulmet. I've now been treating the sick chicks for a full 3 days with absolutely NO improvement. Now the meds have made them have diarhea on top of it all. Big Bird seems the liveliest and is still active and eating and growing. They all will eat and drink but will not get over this sickness! Now a couple are breathing with open mouths too. The feed stores in this area are closed on Saturdays and the only other antibiotics they could even offer are on backorder till next Thursday at the earliest. I have gotten very attached to these chicks and don't want to cull them-and am now terrified that even if I do break down and put them out of this sickness that the other 21 will soon be sick anyway. What to do? I never knew raising chicks could be this difficult and am really getting bummed by having chickens at all when they are evidently so hard to raise for me. I love chickens but am getting really depressed and feeling completely helpless. Don't honestly know what more I can possibly do.