u need to consult dermatologist
now a days many advance technique like LASER
,MICRODERMA,PEEL ,ROLLER ARE there to treat acne and its scar and pigmentation
never popped or pick it
avoid oily and spicy food
avoid milk made item like ice cream ,chocolate etc
avoid sun exposure
u need to apply clindamycin
cream depend upon ur acne
use face wash with salicylic .
wash 3-4 times a day
both over and under wash is harmful.
drink more water and eat more fruits and green vegs.