Pimples leave dark spot on my face... can you tell remedy for that doctor?

Dark Spots from acne: The dark spots that form around acne blemishes result from a condition called postinflammatory hyperpigmentation. Sometimes they're fairly light and unnoticeable, and sometimes they're large dark marks. This condition can also be caused by excessively dry skin. Treatment can be with bleaching cream like hydroquinone.

Acne pigmentation: Other options for the scarring and hyperpigmentation include using an erbium fractional laser (without using the coag component-keep heat low!). That said, a series of tca peels often yields great results at a much lower price, but longer time is required. The dark spots can often also be treated with ipl.