I need help! My chickens are sick, and I don't know what to do! They symptoms are: facial swelling, mostly around the eyes. One bird has a pronounced lump on her nasal passage, but she's the only one. It's not bad enough to make the birds eye's close. Gasping for air, and to an extent, sneezing. I'm noticing more labored breathing than the sneezing. I first started treating with duramycin, but ran out of it quickly, and they grew immune to it, I then got Tylan 50, and did a dosage of 1/5-3/4 cc a day ( all my birds are 4lbs+) I have been doing this for six days, with no improvement. I don't know what to do! I have been told to get baytril, but the only way to get it is online, and by then they will be worse. There is a medicine at the feed store that he said will wipe out anything, but it's $25 a bottle, and I would need 2 bottles. I just don't have that kind of money. I would post a pic, but my camera broke, and I haven't gotten a new one. Is there anything I can do for my birds????