My hen began self isolating a few weeks ago. I borrowed a neighbor's cage and isolated her in the barn. She eats well and acts normal, quit laying, which is not normal for an Australorpe. First week, I gave her 10 iodine drops in her 7 quart water. That did no good. Second week when I freshened the water I gave 2 TBS Braggs apple cider vinegar. She continues to do alright and seems happy in her barn cage where she is left alone and can eat in peace, but the swelling beneath her neck (which is not food caught b/c we checked) the swelling hasn't gone down. Her feathers around (the ears?) look sparce and shiny if I'm seeing it right. What could be her problem, anyone have an idea? Looking at the photo, the ear looks almost crusty now.