On Wednesday, I picked up two 21 week Barred Rock pullets from a man who had many pens and 100+ chickens. I didn't see any outwardly sick chickens while I was there and the two chickens I picked, appeared to be healthy, i.e. clear eyes, no nasal discharge, no weird looking scales, no bald patches. They are currently housed in an XL dog crate with pine shavings, in my garage, next to the side exterior door, so that they can get some fresh air. Wednesday evening, after I brought them home and settled them in, one of the chickens started sneezing. Not too frequently, but I'm paranoid when it comes to chicken sneezes. Yesterday evening, she was sneezing much more frequently. There is some clear nasal mucus, but not so bad to where it's being flung everywhere. I just notice her nostrils were a little damp and she keeps wiping her beak. The second chicken sneezed a few times this morning. Otherwise, they both seem to be fine, eating and drinking okay, poops looks nice (well, for poop). Though they do smell kind of funky, kind of like unwashed feet. I try to keep my coop really clean and I think my flock smells nice (I may be biased). After reading several posts, I'm thinking that this might be environmental. Possible Cause #1) The shavings that I used had gotten wet while still in the package (2 - 3 weeks ago). I let it dry in the sun and when I used it yesterday, it looked fresh and felt dry. Perhaps there was mold that I couldn't see? Possible Cause #2) They are in the garage, which has paint, lawnmowers and cleaners stored in it. Perhaps there is a chemical bothering them? Possible Case #3) Stress. I did just take them from their home and put them in a box, a very large box, but a box none the less. So far I've put ACV in their water. I'll add garlic to their feed and maybe give them some some garlic-filled cheese balls. I'll pick up a new bag of shaving and clean out the kennel. Then, I'll put the kennel on the outside of the house, where my nosy neighbor can't see them. I'm not too worried about my current flock. They are housed several miles away. I also make sure that when dealing with the new girls, that I wear shoes that I won't wear with my current girls and change my clothes that come in contact with them or the kennel. I also scrub my hands like a surgeon after I come in contact with them. My questions are: 1) Are my environmental assumptions correct? 2) If no, Antibiotics? - some say yes, others no 3) Is there anything else I should be doing? On a side note, they seem to sneeze the most when I'm around. I'll be in the garage, no sneezing. My mom checks in on then, no sneezing. I go up to the kennel, sneezing. Maybe they're allergic to me! I'm very sensitive to chemicals and am allergic to most perfumes, so that's not an issue. Thanks for all of your advice.