So we have 28 laying hens in two different coops who seem to have developed an upper respiratory gurgle, and occasional sneezing. They don't all have this going on, but it is difficult to sort out just which ones have it and which do not have it...and regardless, supposedely they are all carriers and/or exposed/infected anyhow??! I am unable to separate them, and see it as a pointless situation in trying to do so at this point anyhow. So far, they are on their 5th day of being treated via their water with LS-50 as prescribed by our local vet. All I read is to either use Tylan or tetracycline. Are these two drugs more effective than the LS-50? I am out of the LS-50, and need to get back to the vet within a few hours so I can either give them more of the LS-50 or get something else. I don't believe he has the Tylan in powder for their water, as I asked originally, and they said no. I was treating a few of the Americana/Americauna's for some feather loss by their tail feathers, as unsure if they may have had some mites going. I have used Nu-stock, poultry dust, and also sprayed them with Blu-coat. They seem to be doing better with that, and aren't getting pecked on any longer. Also, put vicks vapo rub on the tail spot a few times, to deter the others from pecking. Also have some brown egg layers that are fine without the tail feather issue and a few older oddball hens from 3-4 years ago that still are alive.(3 of them are about 4 and the other is about 2 1/2 years of age) None of these have any feather loss. I have also used a bit of Vet RX under their wings, and sprayed on them a couple times at night. Still gurgling. Any suggestions? Have kept them inside, much to their disappointment, so they can only drink the medicated water. SO....in SUMMARY.... I am still dealing with birds with the gurgles and the vet here said and sold me LS-50. Have administered for 5 days and still some gurgling-I need to see what's next-as not better-but not worse either... Any suggestions? Maybe 5 days is not enough of the LS-50?? Maybe the LS-50 isn't a strong enough drug? Or, perhaps as upper respiratory issues are slow in being presented with symptoms and also challenging to get rid of, it just takes longer or a stronger med???