If it feels like fluid, Id take a syringe and drain it. keep it warm and comfortable. If it feels unusually warm. possibly infection. Treat the symptoms.
Heck, that could be a lot of things. I say shake things up a little bit. They are probably hum drum. They will go back to laying. Draw the line with the broodies.
Comfrey I hear a lot. We feed our chickens succulents a lot also. They grow fast and thick. I hear mangle beets a lot also. I planted corn this year. I feed ours rice too. Young cactus (nopales) I also buy in big quantities I skip one day every two weeks and will probably start one day a...
I would give olive oil to both ends. Massage to try to get her to pass the egg. But make sure she is not going to rip because of scabs too much, hence the oil. electrolytes could be good also