How do I get rid of nail varnish stain on duvet cover AND duvet?

On my nice blue duvet, there is now a LARGE bright pink stain, thanks to a nail varnish spillage. I’ve mopped up the worst that was still wet, and dabbed some varnish remover on the rest, which had got some of it up. Unfortunately, it’s soaked through the actual duvet underneath. How do I get it off?!!? Thanks!

I have done that whilst sitting in bed and applying nail varnish. These are some hints. Washable fabrics, Do not use on acetate fabrics. Remove as much as possible, then treating from the back of fabric use non-oily nail varnish remover, being careful not to spread the mark, wash as normal. Test the affect of the varnish remover on a hem before using on fabric. Non Washable fabrics ,Immediately take to the dry-cleaners.
The duvet well it depends on what it is made of and whether it is washable. I would get it to the cleaners