Yucky yellow white washing - Help?!?!?!?

[mumof2222222222222222boys]

Someone - DP / AP / me???? put a yellow duster in the white wash and most of the washing has gone a horrid shade of yellow.

My pants look greeny / yellow.

DH's new white shirts look faintly yellow.

My Japenese dressing gown with lovely pattern has hideous yellow blodges on it.

Any suggestions?

Thanks in advance.

Japanese

bleach it back??

or maybe a colour-run thingy chucked into the washing and re-wash it all??

I really want to not post this reply...

I couldn't fix mine I washed this goldy pillow case (that had been washed many times before) in a white wash, and everything was this weirdy off white colour. I have never managed to fix it, it all looks slightly dirty

I am good at fixing stuff like that too.

I sadly suspect that the fool is anything but...

However, can someone please come up with a positive suggestion?

Anything that is just white (and pref natural fibres) soak in a bleachy bowl (either not too much bleach, or not too long), that should help.