When Should a Teenager See a Doctor for Acne?

A teenager should see a doctor about acne if spots are deep or painful, leave marks or scars, spread to the chest or back, or have not improved after two to three months of correctly used pharmacy treatment. Acne that is affecting confidence, mood, school or sport is also a good reason to get it assessed.

Parents often hold off because they expect teenage acne to pass on its own. Some mild acne does settle, but months of deep inflammation can leave permanent scars, and scarring is far easier to prevent than to treat. You do not need to wait until acne is severe before asking for advice.

Seven signs it is time to get teenage acne assessed

Deep, tender lumps or cyst-like spots under the skin.
Spots leaving dents, raised scars or marks that last for months.
Acne on the chest, back or shoulders as well as the face.
A pharmacy product used every day for two to three months without enough improvement.
Your teenager avoiding school, photographs, sport, friends or eye contact.
Skin that is sore and irritated because several active products are being layered together.
A rash that is itchy, very uniform or not behaving like acne, so the diagnosis is uncertain.

Should we wait three months first?

Not always. Mild blackheads and small spots can reasonably start with a simple pharmacy routine, and the HSE notes that acne treatments can take up to three months to work. Painful lumps, early scarring or real distress should be seen sooner, without waiting out a fixed period.

When does teenage acne go away?

There is no set age. Teenage acne often settles in the late teens or early twenties, but for some people it carries on into adulthood. Waiting to grow out of it is a gamble when the acne is already scarring, because scars do not go away when the spots do.

What if my teenager says it does not bother them?

Respect that, and keep the door open. You can mention pain, marks or changes in behaviour without commenting on how they look. Offer a private, low-pressure route to advice, and let them do the talking at the appointment.

What a doctor can add

A doctor can confirm that it is acne, grade how severe it is, assess the risk of scarring, review what has been tried and discuss prescription treatment that is not available over the counter. They can also decide whether referral to another service is needed.

When to see a doctor urgently

Get same-day medical advice if acne suddenly becomes much worse with fever, painful joints, open or crusted sores, or your teenager feels generally unwell. These are rare, but they need prompt in-person assessment. If acne is affecting your teenager's mood badly, or they mention self-harm, speak to your GP straight away.

Frequently asked questions

Are blackheads alone a reason to see a doctor?

Not usually on their own, but congestion that is not responding to a simple routine, or that is upsetting your teenager, is still worth assessing.

Do acne marks mean scarring?

Not necessarily. Flat red or brown marks usually fade with time, while scars change the texture of the skin. Ongoing inflammation raises the risk of both, so a doctor can help tell them apart.

Can acne affect mental health?

Yes. Acne can affect confidence, mood and social life. Ongoing distress is a valid reason to seek help, whatever the acne looks like.

Can the appointment be online?

For many teenagers, yes. A detailed history, clear photographs and a video consultation are enough to assess most acne. If I think your teenager needs to be seen in person, I will say so and explain the next step.

Does a parent need to be there?

Yes. Under-18s need a parent or guardian's consent, and a parent or guardian needs to be present for the consultation.

Getting it looked at

I see teenagers aged 14 and over by video consultation across the Republic of Ireland. If your teenager's acne is painful, persistent, scarring or affecting everyday life, a Teen Acne Consultation is a good place to start.

Sources

Reviewed by Dr Tara Treacy, GP with a special interest in dermatology (IMC 411337). Last reviewed: 26 October 2026. General information only; it does not replace an individual medical assessment.