Hello, I have a rescue rooster that was attacked and now has a swollen knee and limps. I have taken him to the vet. He is on a strong antibiotic and pain meds. This is his second round. Can anyone give more information on if fluid can be drained or anything further that I can do? The vet is not really educated on poultry and only knows a little about them. I put up x rays the one on right is from June when he was attacked. The left is in October.