Acne, bumpy skin, post acne marks.

I have naturally combination skin, it usually gets oiler during summers. I have been suffering from acne for a while now. Having said that, it's not as severe as it used to be some months back. I have been to quite a few dermatologists and although their treatments help, they only seem to be a temporary measure. Currently I am dealing with post acne marks and scars(the scars aren't very prominent at first glance, but if one looks closely they are still quite apparent) and frequent flare ups. I have a few active zits and small white bumps all over my forehead. I also have bigger bumps on both my cheeks, however, they seem to be under the surface of the skin and one cannot see them but feel them when touched. Sometimes they can be a little painful. I use a salicylic acid cleanser(D acne face wash) which was previously prescribed to me. I also exfoliate my skin, although not regularly with a Dermalogica microfoliant. Sometimes I'd treat my active pimples with a 5% Benzoyl peroxide cream.