My poor little chookie has had a sinus infection for TWO MONTHS now. One other chicken got sick for a day and a half and was fine - none of the others in the flock got sick. I have tried everything. I'm about a week off culling her. I have steamed her, squeezed the pus out of her nose, tried to flush her sinus out with saline, have put her on three different antibiotics. Any suggestions? I want to make sure I have done everything before I put her down - aside from the swollen sinus she runs around, and is eating like a hog. Will Tylan work?