How do you acquire a biro stain from a cotton shirt? I know I'm an idiot, but I had a biro within...

I know I'm an idiot, but I had a biro within the pocket of my white trousers... put them in the piece of equipment and it leaked everywhere. Including over one of my partners' white work shirts. I hold tried that Vanish Oxy stuff with no effect, and I'm panic a little bit. I enjoy washed it over and over, and it is a really expensive shirt! The stain won't come out! Help! I promise from presently on I'll check every pocket twice! Thank you to anyone who can help
Answers:    Try soaking it surrounded by a weak bleach solution.

It's sod's tenet though that if you get Biro on a piece of clothing it's difficult to shift, on the other hand when you write your child's name inside a arts school jumper, it comes stale the first time you wash it!
Metholated Spirit. Put the stained quantity of the shirt over a saucer and add some meths. Scrub kind-heartedly but firmly with a pin brush always moving towards the core of the stain or you risk spreading it. When some biro loosens, rinse it and start again. My husband used to break biros in his trouser pockets relatively often so I get quite apposite at it! If it fails and you are in the order of to chuck the shirt, try a tiny spot of bleach in the nucleus of the mark. It might work but on some materials will turn pallid, so only try as a concluding resort.