How can i get rid of acne or pimples on my chin and dark skin at chin that is because of acne scars?

See a dermatologist: You will improve with prescription adapalene or tretinoin gel or cream. You need to be evaluated and properly instructed in the use of therapeutic agents. Your menstrual pattern and any birth control are factors. You may also benefit from oral spironolactone. The topicals may be irritating at first and they require 2 to 3 months to show effects.