Sun Cream Stains - Removal?

[Eve4Walle]

Some of the DCs clothes appear to have been stained by the suncream I use (Garnier Rapide). How can I remove the stain? It's all over DS' white linen shirt, which looks terrible.

i find that it is almost imposible to remove..

but if you keep washing then line drying on nice sunny days then it fades eventually