ok this is what I am wondering, turkey with sinus infection after 3 days on tylan 50 and no improvement and now has some muscle tissue damage and I have no idea if it will heal and go back to normal. My question is should I get some denagard? I have been reading so many threads for answers and reading the denagard threads and it sounds better than tylan . I have never had to give antibiotics before until now and I really don't like what the tylan is doing to his muscles and I am sure it has to be very painful as well. I also called the number on the tylan because I seen where some people say they put it down the throat and the vet said do not do that because it will damage the throat and only the soluble powder is safe on the throat . So I am inclined to listen to a vet when it comes to that bit of advise knowing what it has done to his breast muscle, I could only imagine what it would do to the throat. ouch!! Would denagard work for sinus infection or baytril? We also have no vet in our area for poultry . I also tried the terramycin feed for a week before I got the injectable tylan and the feed didn't help either. any suggestions would very helpful .