Is a vet an option for you?I tried pushing on it and nothing came out. She is starting to smell funky and is holding her mouth open because the abscess is pushing into her mouth now. I wonder if this is Coryza and not MG since it didn’t quite respond to the Tylan.Poor thing is having trouble with depth perception too.
If not, then you may need to try to press that out more firmly.
The avian sinus is all sort of connected. So what's in the eye may be pushing out through the choanal slit - just a guess on my part unless you have photos.
https://www.backyardchickens.com/threads/sinus-infections.1074036/