I'm hoping for some advice for my dd, who's 13. She has discolouration around her mouth which looks slightly yellowy. She is becoming very conscious of it and starting to feel embarrassed by it so (as well as taking her to the docs on Monday to discuss it) I thought it might be worth trying out some sort of tinted moisturiser/bb cream - something light but which will even out her colour. Does anyone have any suggestions (I'm thinking along the lines of high street brands rather than Lancome etc!)?