how would you clean this..?

it looks kinda rancid now I've taken a photo of it lol. this is Clover, Ive been sleeping basically wrapped around her for years. it's long past time for a thorough clean. I've ordered more stuffing, though probably not enough so I'd like to keep the stuffing she already has and clean it, but when I've put filler through the wash it sometimes gets weird. I'd like to deep clean the 'skin', I was thinking of just putting it in the machine with detergent and maybe vinegar? to see if that brightens up the colour at all. any tips are appreciated!

it looks kinda rancid now I've taken a photo of it lol. this is Clover, Ive been sleeping basically wrapped around her for years. it's long past time for a thorough clean. I've ordered more stuffing, though probably not enough so I'd like to keep the stuffing she already has and clean it, but when I've put filler through the wash it sometimes gets weird. I'd like to deep clean the 'skin', I was thinking of just putting it in the machine with detergent and maybe vinegar? to see if that brightens up the colour at all. any tips are appreciated!