How to get rid of facial imperfections left over from pimples?

Depends: It depends on what the facial imperfections are. Dark marks can often be treated with lightening agents and chemical peels. If it is redness, laser treatments or red light treatments may be helpful. Pitted scarring often requires a laser treatment or subcision. Raised scarring may be treated with steroid injections. You should see a dermatologist to discuss the most appropriate treatment.