Once the acne is under control then you can start treatment for pimple marks which may be pigmentation
or scars. There are various treatments for acne scars
which include creams, chemical peels
, microdermaabrasion, microneedling, radiofrequency, surgery
, fat fill laser
etc. Creams work only for superficial pigmentation not for scars. You can start initially on milder depigmentation creams which contain kojic
like Melaglow at night and use sunscreen three times a day. And depending on type of skin whether oily or dry you can choose a face wash. It need examination and personalized plan. You can consult in private with photographs.