Non prescription: I’ve back acne and i just want it gone.
And how long do you think it would take to get rid of it?

Problem:I have acne on my back but from the pimples that went away, are black dots

Answer:
The best non-prescription is most likely Benzac gel. i started using it (he claimed my acne to be the second worse there is) and my acne went away in less then a month but your skin may dry out so use moisturiser.
Answer:
I would like to refer you to a blog on “how to get rid of acne easy”. There almost all aspects are covered around that issue. I advocate to browse thru all information offered there for free.
Answer:
vinegar
Answer:
Proactive works really well. To get rid of scars try Mederma or Bio-oil.