My hen's face was a little bit swollen on one side. Her eye is also weeping and there were some little bubbles on Sunday too. There also seems to be a little bit coming from her nose on the side that's infected but all liquids are clear and no funky smells. I took her to the vet and they have given Baytril for 10 days, once every day. Yesterday was the 4th. dose. Since I first noticed it on Saturday, she has been acting like her normal self. Running around, scratching, eating. She has also just started to moult, so for the first time ever I decided to give 3 of my chickens a small tin of tuna in spring water to share. When I got up this morning, she was moving slowly and didn't eat her favourite food of all time ... tomatoes. She looked at it, almost went to eat it, then walked away slowly. Is she like this because I gave her tuna ? Does anyone else feed tuna ? Has she got more than a sinus infection ? Does it take a while for the Baytril to start making her better ? She has 6 more doses to go. Thanks.