Skip Navigation

Display Mode:

  • Choose Default Style
  • Choose High Contrast
PAMF Preteen Health Education California
  • Preteen Home
  • About the Preteen Group
  • PAMF Home
  • My Body
  • My Feelings
  • Growing Up
  • My Interests
  • For Parents & Teachers
Section TitleMy Body
  • Body Science
    • A -- E
    • F -- J
    • K -- O
    • P -- T
    • U -- Z
    Main content

    Acne

    The term acne refers to a group of skin rashes that have different causes. Generally, in preteens and teens it is an inflammatory disease of the skin. Acne lesions are often referred to as pimples, spots or zits. If you're a preteen, chances are pretty good that you have started to experience acne. Almost 8 in 10 teens have acne, along with many adults. In fact, acne is so common, that it's considered a normal part of puberty.

    • What causes acne?
    • What makes acne worse?
    • How can you avoid or treat acne?
    • What kind of medicine works for acne?
    • What if acne doesn't go away?

    What causes acne?

    There are three main causes of acne.

    • Overproduction of your skin's natural oil (sebum)
    • Clogged pores from dirt and debris of dead skin cells
    • Infection from bacteria in the oil (sebaceous) glands

    Back to top

    What makes acne worse?

    • Pinching pimples or scrubbing skin
    • Things that rub on the skin (headbands, hats, etc.)
    • Certain cosmetics, creams or hair products containing oil
    • Some medications, including birth control pills with higher doses of the hormone progesterone
    • Hormones produced naturally during puberty
    • For girls, increased hormones just before menstrual periods
    • For boys, increased levels of testosterone
    • Emotional stress and nervous tension
    There is a myth that eating chocolate and greasy foods (like French fries and pizza) cause acne. Contrary to popular opinion, this is not true.
    Back to top

    How can you avoid or treat acne?

    Cleansing is an important part of avoiding and treating acne. To help prevent the oil buildup that can contribute to acne, wash your face twice a day with a mild soap and warm water. Don't scrub your face hard with a washcloth -- acne can't be scrubbed away, and scrubbing may actually make it worse by irritating the skin and pores. Try cleansing your face as gently as you can.

    • Use a mild cleanser such as Cetaphil, or an acne cleanser such as Aveeno Acne Bar, Neutrogena Acne Wash or Benzoyl Peroxide 5% Bar.
    • Exfoliating, which removes the layer of dead skin cells on the surface, is also important for healthy skin. After washing your face with a gentle cleanser, exfoliate with facial scrub one to two times a week. This can help reduce dead skin cells and debris that can clog pores and cause more acne.
    • To avoid further clogging of your pores, use only cosmetics, lotions and sunscreens that are oil-free. To avoid overly dry skin, use an oil-free lotion such as Complex 15. To avoid sunburn, use oil-free sunscreen. And remember to beware of hair products and gels because they tend to be very oily and can get on your skin.
    • Look for product labels that say "non-comedogenic," which means they won't clog pores.

    Back to top

    What kind of medicine works for acne?

    Benzoyl peroxide is an ingredient that can be found in many over-the-counter (not prescribed by a doctor) acne medications. It kills bacteria that worsen acne, unplugs oil ducts and helps to heal acne pimples.

    When using benzyl peroxide:

    • Start conservatively, with 2.5 percent gel or lotion once a day (such as after you wash your face to go to bed).
    • After one week, increase use to twice a day if you are not using another medication and the once-a-day application isn't helping.
    If your acne is not better after four to six weeks, try a 5 percent or 10 percent kind of benzoyl peroxide. It is now available over-the-counter (without a doctor's prescription). Make sure to get the pure form. (You may want to ask the pharmacist to direct you to the type that used to be available by prescription only.)



    Back to top

    What if acne doesn't go away?

    If acne doesn't go away with cleansing and over-the-counter products, make an appointment to see your doctor. He or she may recommend that you see a dermatologist (skin specialist) or prescribe a medication to treat acne.
    Back to top

    boy hiding

    Author: Katie Ransohoff, high school student writer

    Reviewed by the Web Content Committee of PAMF

    Additional Resources:
    Acne, KidsHealth.org.
    • Website Feedback
    • Site Map

    © 2013 Palo Alto Medical Foundation. All rights reserved. Sutter Health is a registered trademark of Sutter Health®, Reg. U.S. Patent. & Trademark office.
    Serving communities around Palo Alto, Mountain View, Fremont, San Jose, San Francisco, Oakland, Dublin, San Mateo & Santa Cruz.