I have a chicken who had peritonitis a month ago, we gave her Lincospectin powder once a day on some food and she was back to normal within a week, but she has it again now and the Lincospectin hasn't been working. We took her to the vets who drained some fluid and now she is on Baytril. I have heard about doing a "vinegar flush" which is mixing vinegar and warm water and syringing it into her vent - could this help? I don't want to do anything that could make her worse. Thanks.