My ds opened a couple of fish oil capsules and sprayed them around (I know i know...!) There's a few streaks up the wall and its also gone on his brand new expensive hoody. This was about a week ago and the smell is VILE. I've washed down the walls and air the room every day but still the smell lingers. On his hoody, I've washed it, sprayed with febreze, re-washed using loads of fabric conditioner, hung outside for several days.... the smell disappears when it's still wet from washing, then emerges again as it dries. Any ideas???