Help, groomers and white dog owners! Asaah (harlequin Great Dane) had a minor injury on her paw that she was licking and now has some saliva staining to her paw. I've already given her a bath, and her usual shampoo, Quic Silver, does a nice job making her whites whiter, but it did nothing for this. Any advice? All I could think of was peroxide, but she also has black spots and I don't want to turn them orange. I'm never getting another white (or black and white) dog again!