Help please. I have 5 speckled sussex, about 6 weeks old. They came from Cackle originally but I bought them some the person who ordered them. All their birds looked good and healthy, clean surroundings and the chicks looked good. I noticed on the way home, one was kind of tired looking but didn't look really unusual for the stress of an hour long drive. When we got home, they were all running around like normal. the next day I noticed that the one that had been tired seemed a little listless and usually stayed away from the others, but was eating and drinking fine. We have been in 100+ heat here in SC so I kept a close eye and put a fan on them in case it was the heat getting to her. Now 3 of them seem to have sneezes and a little bit of swelling around the eyes, just like humans do when they have allergies. I use wheat straw for bedding and put down agri-lime and DE beneath it, with a little DE in a spot for dust baths. I'm hoping this is just allergies and not some respiratory problem. When I got them, they were in something like a playpen on a grass lawn. I thought at first when I saw one sneeze that they were trying to crow. I hate to put them on anitbiotics if I don't have to, but don't want to risk an outbreak of disease, or losing my sweet speckles. Thanks.