licca clean up help

[Offgenemi]

i got this little girl, she is a 3rd generation licca i think. how can i clean her face. there is tiny scratches , and maybe some yellowing on her face. the thing is her body is tan-ish. so if i use acne cream will it go to its original color or will it go lighter?
i never restored this type of doll ( or any other). i would really appreciate any input.

Untitled by goche moche, on Flickr


i dont know if it is visible but her face color changes as you go towards hair line. it matches her body better, front looks yellow
Untitled by goche moche, on Flickr

of course she looks perfect but i cant see tiny little black scratches on her face
Untitled by goche moche, on Flickr

thank you for looking!