I have black spots on my legs left over by lichen planus. any cream for that?

Hyperpigmentation: Post-inflammatory hyperpigmentation, which is a darkening of the skin pigment due to increased amounts of melanin, usually occurs during the healing process after the treatment of a skin disease. While most cases of post-inflammatory hyperpigmentation disappear on their own after a few weeks, you can speed up the process by using bleaching cream with hydroquinone.