My pekin duck's hock is very large and swollen. I posted a picture couple days ago. I thought hopefully the vet would be able to help but she didn't give me much hope. She said she didn't have a kit to test for infection so that wasn't done. She told me that it was either staph, mycoplasma or a slipped tendon. She did give me Tylan to put in his water and pain meds. She said even if was a slipped tendon surgery usually does not help. She said if it is an infection then the Tylon could treat the staph. She did say he does not have bumblefoot. The Tylan could also reduce symptoms of mycoplasma but he would never get rid of it and it would just swell up again down the road. And mycoplasma would affect all my other flock-I have more ducks and hens. She also said that he wasn't given the right diet and that probably didn't help matters. Also he is so big (10 lbs) that he also has that against him as well. So basically she told me to think about bringing him back to put down if he doesn't get well after these antibiotics. I basically left crying and hopeless. Is there anything else I can do? Anyone have success stories? Thank you!