I know there are a lot of reasons for wheezing, but was hoping for some help here. we have an older Golden Comet hen, she is between four and six years old; we got her as an adult in 2005 or 2006. She has always been very hardy. Last summer I noticed her wheezing when it was really hot and dusty; seemed to go away when the weather got cooler, so I attributed it to the weather and conditions, plus her age. Now she is doing it again, and is slightly worse. this time the weather is cool and rainy. Her symptoms have been going on for a few weeks and she is not getting any better; her breathing is now a little labored. Otherwise, she is eating, and running around with her friends; they are all free range so I can't really tell about her poo, but so far her rear seems clean so I don't think she has diarhea.. She does seem like she is losing some weight. so how should we treat her? we are going to try to catch her over the weekend, and isolate her. Since it has been going on for so long, I kind of doubt if it is a virus or infection; although that is still a possibilty should I try VetRX and are there any stores that sell it? Or what else can i use?