To treat acne, you may follow these
Use a salicylic acid
based face wash like saslic or a face wash meant for oily skin like cetaphil oily skin cleanser.
or benzoyl peroxide
gel in morning and adapalene gel in night over acne lesions
Apply Kojic cream over acne pigmentation spots
You may also consult a dermatologist
to consider the need of oral anti acne drugs like azithromycin/ doxycycline/ minocycline or isotretinoin
in your case as sometimes acne does not respond to topical therapy alone
Get your blackheads or white heads extracted regularly
Do not indulge in facials or massages.
Hope that solves your query. Take care.