Hi, welcome to HCM.
You are having 
acne scars and 
hypermelanosis on face.
Do have active acne lesions?
If yes, apply clindamycine or adapalene gel at night on lesions.
If no active acne lesions, you can uselumnaskin cream. It is herbal product containing 
hyaluronic acid , grape seed extract, swiss plants extracts and biowhite serum. It is not irritant as it does not contain 
hydroquinone. However , one can not say that you will get perfect result.
To get perfect result, you apply 
kojic acid and vitamin C containing cream.
Take vitamin C, glutathion and nicotinic acid in proper dose.
Have patience, avoid tension.
I hope you will be improved.
Regards,
Dr. Ilyas Patel MD,DVD