How To Treat Acne Problem ?

hi sir, in kalpana from hyd.im 28yrs old.im having acute acne problem from the past 7yrs.still im having acne but nt as much as earlier.im having severe scarring on my cheeks bcoz of acne .now im intrested in going for laser or dermabrasion for resurracing my cheeks skin.doctor please suggest me which is the best one?how much it costs?wat r the side effects? how will b the results?