How can acne be treated?

Many ways: Start with a mild daily cleanser (like cetaphil or dove sensitive skin). You can use benzoyl peroxide, a topical antibiotic or an oral antibiotic. Additionally you can use salicylic acid or glycolic acid. Retinoids (like retin a (tretinoin) or differin) can be used as can Accutane (an oral type or retinoid). Other treatments include blue light therapy or comedone extraction.