Update: we pressed a wet sterile pad on her eye, and this came right out. Almost looks like a corn kernel, but can't really tell. It smells very bad and there is a lot of fluid draining now. We checked the chonal slit and it's clear, and put the gel on. She tolerated it all very well...
This is a broody chicken. Eye was swollen shut at bubbled out several days ago, now it's even bigger and has pus or an object squeezing out! I don't know what to do?