Does it look like the tylan is working? To me it doesn't look as swollen and the eye is open?
Scroll to my bottom post where I added updated photos
https://www.backyardchickens.com/forum/viewtopic.php?id=505995&p=3
Scroll to my bottom post where I added updated photos
https://www.backyardchickens.com/forum/viewtopic.php?id=505995&p=3