Ollie has something on the top side of his tail. Like maybe he brushed underneath something that had something on it. It looks greasy and feels stiff so I thought it was just food grease of some sort. It has been there for at least a couple of weeks, I just got around to giving him a bath today. I washed the area with Dawn, then cat shampoo, then realized it was still stiff and washed again with Dawn. I figured that was good enough, but when he dried it still looks the same as before. My guess would be glue. My kids were building wooden cars with glue on my last day of school and I came home to a gluey dining room table. Would mineral oil or something like that work? Any tried and true remedies? I guess worst case it will eventually go away as he sheds and grows new hair, it doesn't bother him but it makes him look unkempt to me.