Hello! I just came across this post and noticed your pics and wanted to give my experience. I had a rooster that had pneumonia a few week back and contacted Doc Peter Brown about it, including their bubbly eyes, which look just like yours. He stated that along with mine's pneumonia that they had a secondary sinus infection. He said that I could use the Tylan 50 for them. The dose I was given was 1/2 cc 1x a day for 5 to 7 days. I gave the injection in the back of the neck as I was afraid of hitting something vital on accident on the breast. They never flinched when I gave it on the back of their neck! I gave it to them and by the 3rd day they were a lot better, their eyes completely cleared up, the horrible swelling went down, and their pneumonia was over by the 5th day. I must say that the Tylan 50 is something I will keep on hand from now on. I hope your chickens are feeling much better soon!!!