I have an 18 month old Silver Laced Wyandotte hen with a prolapsed vent. This may not be her first time. I had issues with this before with one of my SLWyandottes but I am not sure this is the same one or not. I have her secluded in a dog crate with a tarp over it to keep her in the dark to prevent egg laying and to keep the other chickens from pecking. What is hanging out looks ruptured, mucosy and has runny poop on it. Should I clean her up and put this back in or leave it alone? Is there medicine I should be using? The first time this happened wasn't this severe and the vent went back inside on its own within a few minutes. Is this something that is common to the wyandottes or chickens in general? Thanks for the help.