Vet Rx has nothing in it to cure or treat a respiratory disease, only herbal oils, pine, and camphor, so similar to Vicks. Unfortunately most chronic respiratory diseases will be passed on to all new flock members, and they may not achieve their potential for laying eggs and having good health. Infectious bronchitis virus may cause reproductive or kidney disorders later. I had IBV in my flock early on, and many hens stopped laying early, and had many reproductive problems including internal laying or salpingitis, ascites, and did not live to an old age. If you have seen any wrinkled egg shells, that can be a sign of IBV. Most people with a respiratory disease close their flocks to any new birds, and wait until all birds are gone, then get new healthy baby chicks again someday. That can take years. I advise to never get chickens from anyone else, swap meets, or sales, because that is a good way to bring in diseases. I will only get healthy baby chicks from a hatchery or feed store in the future.
