tylan or denagard?

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 .

thank you for the reply . I stopped the tylan and ordered denagard as it won't damage or hurt  him and I will never use tylan again unless it is an emergency and I have no other options. Tissue damage will not repair itself after doing tons of research lastnight . I really hope others read this and don't put this tylan injectable down the throats of there poultry because it will damage the throat .Please if anyone thinks of doing this then call the number on the tylan bottle and ask to speak with their vet and they will tell you.

thank you for the vet info as well. Indianapolis is 2 hour drive but maybe she can call something in or help me over the phone.

my other turkey now has the same symptoms, mucus,hacking  sound kind of like congestion and swollen sinus under eyes. Is it sinus infection or something else? by the way the post I have left about tylan in the throat are my own feelings and I am not trying to tell anyone not to just to please talk to a vet before doing so. Your vet may tell you different, I am going by my vet and the vet from the number on the tylan bottle. thanks in advance . by the way my other turkey is still the same no improvement and not worse.

I have not started the denagard as I am still waiting for it to show up.