Hydroquinone made the sides of my lips dark! Prescribed at a 4% by my dermatologist, several days ago, for my uneven lips.

Not much results are visible thus far, but it's clear that the dark triangles at the side of my lips haves darkened, it seemed to darken areas that weren't dark before. I think it's working- a little- on other areas of my lips, though. What can I do to reverse the pigmentation formed? And what other treatments can I do to make my lips pink and even toned? I've had slightly discoloured lips (albeit subtle and barely) ever since I was five, just for reference.

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