What causes forehead acne and how is it treated?

Acne starts when hair follicles become clogged. Hormones and family history can contribute, and stress can make existing acne worse. Forehead acne is not automatically a sign of dirty skin. Chocolate and greasy food are often blamed, but there is little evidence that food has much effect on acne in most people. Treating the blockage is more useful than assuming one meal caused it.34

Small bumps that mostly match your skin colour and are not swollen or tender can be comedonal acne, meaning pores plugged with oil and dead skin cells. Closed plugs are whiteheads; open plugs are blackheads, whose exposed contents darken in air. Comedonal acne commonly affects the forehead and can occur alongside inflamed pimples. A doctor can identify the type by examining your skin.5

Which treatment should you choose?

TreatmentWhat it doesWhere it fits
Salicylic acidHelps break up dead skin cells and clear pores.An option for forehead blackheads and whiteheads, available without a prescription.
Benzoyl peroxideHelps clear plugged pores and dry out acne.Available in acne creams without a prescription; check combinations with a doctor because it can interact with other topical acne treatments.
Adapalene and other retinoidsHelp skin cells turn over and leave pores.Better suited to ongoing maintenance than a quick spot treatment; retinoid creams and lotions come in prescription and nonprescription strengths.
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Azelaic acid and glycolic acid are also topical options for comedonal acne. Persistent clogged pores can be difficult to clear even when the acne is mild. A healthcare provider can help choose a treatment plan rather than treating every small bump as an inflamed pimple.5

How to build your daily routine

  1. 1Wash gently in the morning and evening, and after sweating. Use a gentle cleanser and your fingertips rather than a scrub, sponge or washcloth.
  2. 2Apply your acne medicine according to its directions. General acne guidance is to spread a thin layer over acne prone skin, not just individual spots, to help prevent new blemishes.
  3. 3Moisturize morning and night. Choose a water based, oil free moisturizer labelled noncomedogenic, meaning formulated not to clog pores. Remove makeup before bed.
  4. 4Protect exposed skin outdoors with broad spectrum, water resistant sunscreen with SPF 30 or higher. Choose a noncomedogenic sunscreen, seek shade and use protective clothing.
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For gentle cleansing, use circular motions, rinse thoroughly with lukewarm water and blot dry with a clean towel. The thin layer approach is general acne care, not a reason to change a particular medicine's instructions. Regular treatment across the affected area serves a different purpose from treating only a spot that has already appeared.6

If your skin is easily irritated, choose gentle products labelled alcohol free and avoid irritating toners and exfoliants. Drying out your skin can make acne look worse. Changing acne treatments too frequently can also cause irritation and breakouts. Some acne medicines increase sensitivity to ultraviolet light, so tanning is not a treatment shortcut.2

What if the spots are mostly along your hairline?

Hair styling products can build up at the hairline, which is an unhelpful place for a styling product to settle. Mousse and dry shampoo can contribute to these breakouts. Try switching the suspected product or keeping styling products on the ends of your hair instead of near your scalp.1

Hair oil can also contribute to forehead acne. Shampoo regularly, more frequently if your hair is oily, and keep hair away from your face. Avoid repeatedly touching your forehead. Picking or squeezing spots makes them take longer to clear and increases the risk of scars and dark marks left after inflammation.2

If bumps extend into your scalp, avoid greasy hair products or products that leave residue, and wash your hair after sweating. Tight hats and headbands can add friction. Wash headwear and pillowcases regularly to remove product residue. If you need a helmet, choose one that fits properly and has ventilation.7

Itchy or painful scalp bumps need a different assessment from ordinary forehead blackheads. Clogged follicles can involve bacteria, yeast or other microorganisms, and scalp folliculitis is another possible cause. Treatment depends on the cause; an antifungal shampoo is not automatically the right treatment for every forehead breakout.7

How long does forehead acne take to clear?

For comedonal acne, you may notice a difference after eight to 12 weeks of persistent treatment, while clearing can take many months. This type of acne can return over time because hormones and genetics continue to contribute. Do not pick or extract clogged pores yourself: damage to follicles can cause more comedones, infection and scars. Professional extraction and chemical peels are options a provider can consider.5

Scalp acne has a separate timetable: improvement can begin within days after treatment or removal of a triggering hair product, but clearing can take up to six weeks. Contact a healthcare provider if scalp bumps have not improved after six weeks, or sooner for worsening symptoms, severe pain, swelling or fever.7

Side effects, pregnancy and prescriptions

Nonprescription acne medicines can cause redness, dryness and excessive peeling. Follow directions carefully and apply sparingly. Benzoyl peroxide can bleach towels and clothing. Let your provider know about medication side effects rather than increasing the amount to push through them.45

If nonprescription care is not enough, a provider can prescribe stronger topical medicines or antibiotics. Hormonal treatments help some women, while isotretinoin is an option for cystic acne with scarring and requires close monitoring. Isotretinoin must not be taken during pregnancy because it causes severe birth defects. Discuss acne treatment with your healthcare provider if you are pregnant. Tell your provider about current medicines and supplements before starting prescription treatment to check for interactions.47

When should you see a doctor?

See a healthcare provider if forehead acne is worsening, you have deep painful cysts or substantial redness, scars are developing, or acne is causing emotional distress. Arrange a review if self care and nonprescription medicines have not helped after several months. A clinician can confirm the diagnosis and adjust treatment instead of leaving you to keep replacing products.4

Where this answer comes from

  1. 1Acne Face Map: The Cause of These Breakoutshealth.clevelandclinic.org
  2. 2How to treat acneaad.org
  3. 3Acne | Blackheads | Pimple | Zitsmedlineplus.gov
  4. 4Acne: MedlinePlus Medical Encyclopediamedlineplus.gov
  5. 5Comedonal Acne: Causes & Treatmentmy.clevelandclinic.org
  6. 6DIY treatment for 5 common beard problemsaad.org
  7. 7Pimples & Acne on Scalp: Causes, Shampoo & Other Treatmentsmy.clevelandclinic.org