Grading acne into stages is easy: the worse the acne, the higher the stage and the more aggressive the required treatment.

Acne severity is measured using a scale from 0 to 8; anything higher than Stage 2 will probably require some type of prescription medication, or a combination of prescription and over-the-counter treatments. It is recommended that you see a dermatologist, however, prior to the more advanced stages of acne when scarring can develop.

Stage 0: If you're at Stage 0, you are experiencing some mild breakouts of whiteheads and blackheads without inflammation. It's nothing too serious at this point, and can probably be managed fine with an over-the-counter acne wash to help prevent further flare ups.

Stage 1: At Stage 1, you are experiencing whiteheads and blackheads with more frequent breakouts and perhaps some very mild inflammation. A gentle acne wash and application of an over-the-counter benzoyl peroxide product might keep things under control.

Stage 2: Add in some papules to Stage 1, and you've gotten to Stage 2. Though still considered a mild stage, it might not be a bad idea to replace your cleanser with one containing 2% salicylic acid along with a nightly application of benzoyl peroxide.

Stage 3: Your skin condition is becoming more serious, but still not serious enough to panic. A cleanser with 2% salicylic acid and nightly application of benzoyl peroxide might still do the trick to help you keep your acne under control.

Stages 4-5: Pustules are starting to appear, now, along with noticeable inflammation. If you haven't already, the time is now ripe for scheduling an appointment with your dermatologist.

Stages 6-7: Nodules and cysts are manifesting in the deep layers of the skin. See your dermatologist right away to avoid scarring.

Stage 8: Breakouts consisting of nodules and cysts deep in the skin have left their mark: acne scars. But, there are new technologies that can help diminish or remove some scars, so make sure to consult a dermatologist immediately about your options.