Rooster with respiratory complications

[18awesomechickens]

In June I got a new rooster and hes had these complications for a few weeks and hes still not better even with tylan 50. I swabbed his throat and no worms came out either. Weezing, sneezing, coughing, no bubbly eyes, lost voice, not crowing. Figured I'd ask here, though if he doesn't get better, I'm gonna bring him to the vet. What else could I do for him?

 

[Poultrybonkers]

anything respiratory is uncureable meds only hid the symptoms

 

[18awesomechickens]

I looked at him again and he alzo has yellow stuff in his mouth like on his tongue, side of beak right at the corner, and on the inside at the side. He's still gasping/wheezing but it's not as bad as it was when he initially started with the symptoms. Still has lost voice but stopped crowing