[Yaristock]

I have had this cover for about 1 1/2 years now and the edge closest to my face has turned yellow. I know why, and theres not much I can do about it. I have severe cystic acne which if not annoying enough creates enough oil to lubricate a small two stroke engine. Unfortunantely at night all of my linens and mainly this very expensive down comforter absorb most of it. Not to mention it being transfered to the paint on my walls. So my question is how the heck can I try and clean this. I have washed it before to no avail it is still here. I have rubbed it down with vinegar thinking that may break up the oils but it doesn't. I'm scared to use bleach for not being sure what it will do to the innards.
http://i16.photobucket.com/albums/b4...8/IMG_0241.jpg
http://i16.photobucket.com/albums/b4...8/IMG_0243.jpg
http://i16.photobucket.com/albums/b4...8/IMG_0242.jpg
Sorry for the bad pix I'm not good at pictures.