Originally I thought it was "pasty bum" but it has gotten worse and is more along the lines of vent gleet as described on several internet sites, including BYC. I have washed her several times only for it to get worse. She is a mess back there. It doesn't seem to bother her but it looks absolutely painful. 1) What type of bird , age and weight. Barred Rock, Female, just started to lay. Good weight. Looks full grown. 2) What is the behavior, exactly. Vent Gleet suspected. White yucky discharge and very red vent area. AND she has a little "cough" sound she makes. No mucus, bright eyes, spunky. 3) How long has the bird been exhibiting symptoms? On and off for a few weeks but it is the worst right now. 4) Is there any bleeding, injury, broken bones or other sign of trauma. No, just REALLY red. 5) What happened, if anything that you know of, that may have caused the situation. She might have reacted to having a new home. It was really wet here when we got her and perhaps her feed got wet? 6) What has the bird been eating and drinking, if at all. Eating and drinking fine. Laying almost every day. 7) How does the poop look? Normal? Bloody? Runny? etc. Poop kind of runny but not outside the norm. 8) What has been the treatment you have administered so far? ACV in water, isolation, plain yogurt and apple sauce. She seems to really like it. 9 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? I might call an avian vet but am trying to avoid it. 10) If you have a picture of the wound or condition, please post it. It may help. 11) Describe the housing/bedding in use They have pine shavings on the floor of a big chicken house, plenty of roost poles and a huge fenced in pen with lots of grass.