Vent gleet can be caused by fungus or bacteria. It is usually foul smelling, among other things. It can look like poo is clinging to the area when it is actually the fungus. The longer it is left, the more involved it gets ...
One way to quickly and inexpensively clear up a fungal gleet is to apply athlete's foot cream to the area. If it doesn't clear up rather quickly (think a few days) with athlete's foot cream, then it could be bacterial, and that is a more complicated situation that would require an antibiotic, but which one?
You can wash the bird's bum, then smear it with the cream, then let her go be a bird. Do that for a few days. Do as you wish with any eggs she lays during this time. I haven't read about any required "withdrawal" period for consuming eggs from a hen treated with athlete's foot cream, but if anyone knows, please share. Typically, the egg production process takes 6 weeks, so that's the most conservative withdrawal period.
Other anti-fungal pharmaceuticals can also be used ... yeast infection creams, jock itch creams. But they are all essentially the same thing that's in athlete's foot cream, which is probably the cheapest and easiest to find.
Gleet can cause a prolapse ... or maybe even vice versa.
I think it was just a build up of poop because after I cleaned it she has stayed clean. I'll keep the info for future reference tho!
The large bulge could be another egg if she's egg bound. I'd keep checking periodically to see it it changes; if not, continue the warm soak.
Idk that she is egg bound because she lays an egg every day... could one be stuck and she can still lay an egg?