You should see a dermatologist for acne if you have deep, painful lumps (nodules or cysts), if your acne is leaving scars, or if you’ve used an over-the-counter treatment every day for two to three months without enough improvement. Pregnancy, being a teenager, acne that comes with other symptoms, and rashes that might not be acne at all are also good reasons to get checked in person.
The American Academy of Dermatology (AAD) goes further: it says no acne is too mild to potentially benefit from a dermatologist. You don’t have to wait until things are bad. But if you’re deciding whether it’s time, the signs below are the ones that matter most.
8 signs it’s time to see a dermatologist
1. You have deep, painful lumps (nodules or cysts)
Nodules and cysts form deeper in the skin than ordinary pimples. They’re often painful, can last for weeks, and are the type of acne most likely to leave permanent scars. Over-the-counter products rarely reach them. A dermatologist can calm a large, painful cyst quickly, for example with a small injection of a corticosteroid, which the AAD says flattens most nodules and cysts within 48 to 72 hours, and can start treatment to stop new ones forming.
Don’t squeeze or try to drain them yourself. That can push inflammation deeper and make scarring more likely.
2. Your acne is leaving scars or marks
Pitted, dented or raised scars don’t fade on their own. The AAD recommends treating acne early precisely because stopping breakouts prevents new scars, and says early treatment matters even more if a parent or sibling has acne scarring. Scar treatments such as microneedling or scar surgery are done by a dermatologist, usually once active acne is under control.
Flat dark or red marks that fade over months aren’t true scars, but they can last a long time, especially on darker skin. A dermatologist can suggest ways to prevent and fade them.
3. Over-the-counter treatment hasn’t worked after 2 to 3 months
According to the AAD, if a treatment is working you should see some improvement in about 4 to 6 weeks, and clearing can take two to three months or longer. So give a proper product, such as adapalene 0.1% gel or benzoyl peroxide, a fair trial of daily use. If you’ve done that and your skin still isn’t where you want it, the next step is usually prescription treatment. A dermatologist, your own doctor, or (for adults) an online service can provide that.
If you’ve been switching products every week or two, you may not have given any of them a real chance. Our guide to using adapalene gel and our benzoyl peroxide strength guide can help you start one properly.
4. Acne is affecting how you feel
Acne isn’t “just cosmetic.” If it’s making you avoid people, affecting your confidence, or bringing your mood down, that’s reason enough to get help. The 2024 AAD guidelines list acne that causes psychosocial burden among the situations where the strongest prescription treatment, isotretinoin, can be appropriate. If you’re feeling very low or hopeless, talk to a doctor about your mood as well as your skin.
5. Acne appeared suddenly, or came with other symptoms
Acne that starts suddenly in adulthood, or comes with irregular periods, new coarse hair on the face or body, or thinning scalp hair, can be a sign of a hormonal condition such as polycystic ovary syndrome (PCOS). A doctor can check for it. Breakouts that simply flare before your period or sit along the jawline are common in adult women and are often treatable with hormonal therapy such as spironolactone or certain birth control pills, which the AAD describes as options for stubborn hormonal acne.
6. You’re pregnant, breastfeeding or planning a pregnancy
Several acne medicines aren’t recommended in pregnancy, including isotretinoin, spironolactone, tetracycline antibiotics such as doxycycline and minocycline, and retinoids. The OTC adapalene gel label tells you to ask a doctor before use if you’re pregnant or breastfeeding. The AAD notes that some options, such as azelaic acid and limited use of benzoyl peroxide, are generally considered acceptable. A dermatologist, working with your obstetric clinician, can help you choose.
7. You’re a teenager, or the parent of one
Mild teen acne often improves with over-the-counter benzoyl peroxide or salicylic acid products. But if a teen’s acne is moderate or worse, scarring, or upsetting them, a pediatrician, family doctor or dermatologist can prescribe more effective treatment. Treating it early can prevent scars. We recommend that teens see someone in person, with a parent or guardian, rather than using online subscription services.
8. You’re not sure it’s acne
If your “acne” doesn’t behave like acne, for example there are no blackheads or whiteheads, it itches, or it doesn’t respond to acne treatment, it may be something else. The next section covers the most common look-alikes.
Conditions that look like acne
These four conditions are often mistaken for acne. Each needs different treatment, and some acne products can make them worse.
| Condition | What it often looks like | Clues it may not be acne | How it differs |
|---|---|---|---|
| Rosacea | Redness in the center of the face, easy flushing, acne-like bumps | No blackheads or whiteheads; skin often burns or stings with products | Treated with rosacea-specific medicines; harsh acne products can irritate it |
| Malassezia (pityrosporum) folliculitis, or "fungal acne" | Small, uniform, itchy bumps on the upper back, chest, hairline or forehead | Itching; bumps all look alike; no blackheads; not helped by acne treatment | Caused by yeast; treated with antifungal medicines |
| Perioral dermatitis | Tiny bumps and scaling around the mouth, nose or eyes | Often starts after using a steroid cream on the face | Stopping steroid creams is part of treatment; a doctor may prescribe other creams or pills |
| Hidradenitis suppurativa (HS) | Painful lumps or boils in the armpits, groin, buttocks or under the breasts | Keeps coming back in skin folds; may drain fluid or leave tunnels and scars | A long-term inflammatory disease managed by a dermatologist; acne products are not the treatment |
Rosacea. The AAD says rosacea often begins with a tendency to flush easily, and many people get acne-like breakouts. A key difference is that rosacea doesn’t cause blackheads or whiteheads, and skin may burn or sting when you wash or apply products.
Malassezia folliculitis. An overgrowth of a yeast that normally lives on the skin inflames the hair follicles, producing small, itchy, same-looking bumps, most often on the upper back and chest. It’s commonly misdiagnosed as acne and can persist for years on acne treatment. Antibiotics can make it more likely. It responds to antifungal treatment, so a correct diagnosis matters.
Perioral dermatitis. This rash of small bumps around the mouth (and sometimes the nose or eyes) often follows using a corticosteroid cream on the face. The AAD says clearing it means stopping all corticosteroids on the skin, including over-the-counter hydrocortisone, even though the rash can flare at first. Because of that flare, it’s best to have a plan from a doctor.
Hidradenitis suppurativa. HS causes painful, deep lumps that look like boils or large pimples, mostly where skin rubs together: the armpits, groin, buttocks and under the breasts. They tend to come back in the same places and can leave tunnels under the skin and scars. It isn’t caused by poor hygiene and it isn’t contagious. Because it’s a long-term inflammatory condition with its own treatments, see a dermatologist rather than treating it as acne. Our treatment path quiz sends anyone who describes these lumps, or bumps only in these areas, to in-person care.
Get our free 8-week acne routine course when it launches
Join the AcneRid list: we'll email you when our free 8-week acne routine course launches, plus heads-ups if a common acne product is recalled.
When to get care urgently
Rarely, acne becomes severe very suddenly, with ulcerating sores, and comes with a fever, aching joints or feeling generally unwell. This is called acne fulminans. It mostly affects adolescent males, and DermNet advises seeing a dermatologist urgently. Contact a doctor promptly if this sounds like you.
What a dermatologist can do
A dermatologist can offer everything available over the counter, plus:
- Prescription creams and gels, such as tretinoin and other retinoids, topical antibiotics used with benzoyl peroxide, azelaic acid, and clascoterone, a hormone-blocking cream the FDA approved for people 12 and older.
- Oral medicines, such as the antibiotic doxycycline, which the 2024 AAD guidelines strongly recommend for suitable patients, and hormonal treatments such as spironolactone and some birth control pills for women.
- Isotretinoin for severe or scarring acne, or acne that hasn’t responded to other treatment. It can only be prescribed through the FDA-required iPLEDGE program, with pregnancy testing and regular follow-up.
- In-office procedures, including corticosteroid injections for painful cysts, drainage and extraction of large cysts, chemical peels, and laser or light treatments.
- Scar treatment, once active acne is under control.
- A diagnosis, including telling acne apart from the look-alikes above.
In person, online or your family doctor?
| Option | Often a good fit for | Less suited to |
|---|---|---|
| Board-certified dermatologist (in person) | Nodules or cysts, scarring, severe acne, isotretinoin, look-alike rashes, pregnancy, teens, acne that failed earlier prescriptions | People who can’t get an appointment soon; waits vary by area |
| Family doctor or pediatrician | Mild to moderate acne, teens with a parent, a first prescription, checking for hormonal causes | Severe or scarring acne, or when the diagnosis is unclear |
| Online acne service (adults only) | Adults with mild to moderate acne who want convenience and a prescription cream or pill | Anyone under 18, pregnancy, cysts, scarring, severe acne, possible look-alikes |
If an online service fits your situation, our comparison of online acne treatment services lays out what each prescribes, costs and accepts, and our guide to online acne care explains how it works.
How to find a board-certified dermatologist
- Use the AAD’s Find a Dermatologist directory. You can search by location and condition. The AAD says “FAAD” (Fellow of the American Academy of Dermatology) after a name means the dermatologist is board certified.
- Verify board certification with the American Board of Dermatology.
- Check your insurance. Some plans need a referral from your primary care provider before they’ll cover a specialist visit. Ask your insurer, and ask the office whether they’re in network.
- Ask about waits. If the first available appointment is months away, ask to join a cancellation list, and ask your primary care provider whether they can start treatment in the meantime.
How to prepare for your appointment
A little preparation makes a short visit much more useful:
- List everything you’ve tried, with the active ingredient, strength and roughly how long you used it (for example, “adapalene 0.1%, nightly, 10 weeks”). Take photos of the labels if that’s easier.
- Take photos of your skin on bad days, especially if it’s calmer on the day of the appointment.
- Bring a list of all medicines and supplements, including birth control and any steroid creams.
- Note patterns: whether breakouts flare with your period, stress, sweat, or particular products.
- Mention any pregnancy plans, as they change which treatments are suitable.
- Say how acne is affecting you. It helps the dermatologist decide how aggressive treatment should be.
Useful questions to ask include: What type of acne do I have? How long until I should expect improvement? What side effects should I watch for? What should I do if my skin gets irritated? When should I come back if it isn’t working?
For background on how acne forms and the different types of spots, see what acne is and what causes it.