There are many treatments available for acne and they work in 4 different ways.  These include hormonal manipulation, anti-inflammatory effects, killing propionibacterium acne and opening up pores to prevent blockage.  Many effective acne treatments work in multiple simultaneous ways.  If it were up to me, I would like to put something on my acne and have it disappear overnight.  Unfortunately, most successful programs don’t happen that quickly!  Some may take weeks or even months to see results, but the consistency of the regimen is important in seeing change.  Good hygiene and a good diet will also contribute to having clearer skin.