What is the best treatment for acne?

Acne is a problem for so many of is and there are so many treatments, remedies, wonder cures and what's not out there that it is very hard for anyone to work out the best acne treatment for their personal situation.

For some people it's just keeping extra clean, for others it involves serious hormonal changes and diet evaluations. It can take a lot of testing and sometimes consulting with a professional or at least fellow acne sufferers.

Have you had serious acne, did you manage treat it? If so please let us know what you did.