OK, I feel a bit silly for asking this, but anyway.
DD (aged 3) just got hold of one of her birthday cards which has a photo of her and her cousin glued to the front of it.
Anyway, I wondered why she was looking guilty, it seems she has been licking the photo on the card . Said photo has now gone a strange pink colour, I gather this must mean she's swallowed some sort of property off the photo image (if that makes sense? Ink? Chemicals? I don't really understand these things)
Would this be dangerous? She's not seeming to be adversely affected at the moment