Though it doesn't kill bacteria or have any effect upon sebum production, salicylic acid can be useful in your efforts to get rid of acne. Salicylic acid causes your skin to shed its outermost layer. By getting rid of this layer of dead skin cells, your skin will be better able to keep pores nice and clear of blockages.
You'll want to avoid putting this peeling agent on any irritated or sensitive skin, or any skin that has cuts or sores. And you have to keep using it -- once you stop, the benefits cease.
Now you know what to put on your face to make it better. But what should you be taking off of it?