Acne Treatment: Types of Acne and What Works by Severity
The best acne treatment depends on what kind of acne you have and how severe it is. Mild blackheads, whiteheads and a few pimples usually respond to over-the-counter benzoyl peroxide, adapalene or salicylic acid, while moderate or severe acne often needs prescription creams, tablets or both. Whatever you use, expect to wait at least 4 to 6 weeks for the first signs of improvement and two to three months for clearer skin.
This article is for general information and is not medical advice.
Key takeaways
- Acne ranges from clogged pores (comedones) to red, pus-filled pimples to deep, painful nodules and cysts, and each type calls for a different level of treatment.
- Benzoyl peroxide, adapalene and salicylic acid are the main over-the-counter options, and they work best for mild acne.
- Prescription options include topical retinoids, topical and oral antibiotics, hormonal treatments and isotretinoin for severe acne.
- Most treatments need 4 to 8 weeks before you see a change, so switching products every week works against you.
- Gentle washing, no scrubbing and no picking matter as much as the products you choose.
What are the main types of acne?
Acne falls into three broad groups: comedonal acne (blackheads and whiteheads), inflammatory acne (red papules and pustules) and nodular or cystic acne (deep, painful lumps). Many people have a mix of more than one type at the same time.
All acne starts in the pore. According to MedlinePlus, acne occurs when tiny openings on the skin become clogged with oil and dead skin cells, forming a plug called a comedone. Bacteria trapped in that plug can then trigger red, swollen pimples.
Comedonal acne
Comedones are clogged pores without much redness. A whitehead (closed comedone) is a plug with a white top, and a blackhead (open comedone) is a plug with a dark top. If you are not sure whether the dark dots on your nose are true blackheads, our guide to telling blackheads apart from sebaceous filaments can save you from treating the wrong thing.
Inflammatory acne
Inflammatory acne shows up as papules (small red bumps) and pustules (red bumps with white or yellow pus at the center). These are the classic "pimples." Red bumps around the mouth are not always acne, so it helps to know the signs of perioral dermatitis versus acne around the mouth.
Nodular and cystic acne
Nodules and cysts are hard, painful lesions that sit deep in the skin. A review in StatPearls (NCBI Bookshelf) describes this stage as many pustules merging to form nodules and cysts, and it classifies nodular inflammatory acne as severe. The same review estimates that about 20% of people with acne develop severe acne that leads to scarring.
How do you tell if your acne is mild, moderate or severe?
Mild acne means a few scattered comedones or small red bumps with no scarring. Moderate acne has more comedones, papules and pustules, and severe acne includes nodules, cysts or scarring.
The StatPearls review also counts scarring pustules as severe, even without nodules.
| Severity | What you usually see | Typical starting approach |
|---|---|---|
| Mild | A few blackheads, whiteheads and small pimples, no scars | Over-the-counter benzoyl peroxide, adapalene or salicylic acid |
| Moderate | Many comedones plus red papules and pustules, often on the face, chest or back | Prescription topical combinations, sometimes with an oral antibiotic |
| Severe | Painful nodules or cysts, widespread pimples, or scarring | Specialist care: oral isotretinoin, hormonal treatment or combined therapy |
What over-the-counter treatments work for mild acne?
For mild acne, the three ingredients with the best support are benzoyl peroxide, adapalene and salicylic acid. Each works in a slightly different way, so the right pick depends on whether you mostly have clogged pores or red pimples.
The American Academy of Dermatology (AAD) explains the roles this way:
- Benzoyl peroxide reduces acne-causing bacteria. It suits red, inflamed pimples. It can bleach towels, pillowcases and clothing, so use white linens if you can.
- Adapalene is a retinoid (a vitamin A derivative) that unclogs pores and reduces oiliness. It suits blackheads and whiteheads and helps prevent new ones from forming.
- Salicylic acid eases inflammation and unclogs pores. It is a reasonable choice for mild comedonal acne or sensitive skin that cannot tolerate other options.
MedlinePlus notes that over-the-counter products may also contain sulfur or resorcinol, and that the usual side effects are redness, dryness and peeling. If you plan to layer acids with a retinoid, read our explainer on safe ways to combine retinoids with AHA and BHA before you start.
The AAD advises using no more than one or two acne products at a time, and if you add a second one, choosing a different active ingredient rather than doubling up on the same one. The 2024 guidelines found insufficient evidence to recommend plant-based or other alternative therapies, so treat natural remedies as extras rather than replacements.
What prescription treatments are used for moderate and severe acne?
When over-the-counter products are not enough, a doctor can prescribe stronger topical treatments, oral antibiotics, hormonal medicines or isotretinoin. Most plans combine more than one treatment so they target acne from several angles at once.
The American Academy of Dermatology's 2024 guidelines of care for acne vulgaris, published in the Journal of the American Academy of Dermatology, give strong recommendations for topical benzoyl peroxide, topical retinoids and topical antibiotics (including fixed combinations of these), for oral doxycycline, and for oral isotretinoin in severe acne, acne that scars or acne that has not responded to standard treatment. They give conditional (weaker) recommendations for topical clascoterone, salicylic acid and azelaic acid, oral minocycline and sarecycline, combined oral contraceptives and spironolactone.
Topical prescriptions
Prescription creams and gels include stronger retinoids such as tretinoin and tazarotene, topical antibiotics such as clindamycin and erythromycin, dapsone gel and azelaic acid, according to MedlinePlus. Topical antibiotics should be paired with benzoyl peroxide to limit antibiotic resistance, as noted in the StatPearls review. The NHS lists mild irritation and stinging as the usual side effects of topical retinoids, and says they are not suitable in pregnancy.
Oral antibiotics
Doctors usually choose a tetracycline-class antibiotic such as doxycycline or minocycline for inflammatory acne. Courses should be as short as possible, ideally 3 to 4 months, and combined with benzoyl peroxide or another topical treatment. The NHS warns that tetracyclines can make your skin more sensitive to sunlight.
Hormonal treatments
For women whose acne flares around periods or is linked to conditions such as polycystic ovary syndrome, a combined contraceptive pill may help, the NHS says. Spironolactone is another option; StatPearls notes it is often started at 25 or 50 mg a day and can be raised to 100 mg a day. The NHS adds that the progestogen-only pill and the contraceptive implant can sometimes make acne worse.
Isotretinoin
Isotretinoin is an oral retinoid reserved for severe, nodular or scarring acne, or acne that has not responded to other treatments. It reduces oil production, clogged follicles, bacteria and inflammation. In the UK only a specialist can prescribe it, and MedlinePlus stresses that it causes severe birth defects, so it must not be taken during pregnancy. StatPearls advises stopping it at least 1 month before trying to conceive.
For a deeper look at a newer topical combination some dermatologists use for hormonal and cystic breakouts, see our piece on topical spironolactone, tretinoin and niacinamide for acne.
How long do acne treatments take to work?
Most acne treatments take 4 to 8 weeks to show a clear improvement and two to three months or longer to clear the skin. Hormonal treatments can take even longer.
The AAD recommends giving any acne treatment at least 4 weeks, with improvement usually appearing between 4 and 6 weeks. The NHS gives these typical timelines:
| Treatment | Time to see results |
|---|---|
| Benzoyl peroxide | About 6 weeks to clear most acne |
| Topical retinoids | About 6 weeks |
| Topical antibiotics | 6 to 8 weeks, then usually stopped |
| Azelaic acid | About 1 month |
| Oral antibiotics | About 6 weeks to notice improvement; courses often last 4 to 6 months |
| Combined contraceptive pill | Up to a year for the full benefit |
Once your skin clears, keep going. The AAD advises continuing treatment to stop new breakouts, and the NHS suggests using benzoyl peroxide less often after the first six weeks rather than stopping it outright. MedlinePlus notes that acne can still flare from time to time.
What skincare basics help acne-prone skin?
A simple routine of gentle cleansing, a non-clogging moisturizer and hands off your face supports any acne treatment. Harsh scrubbing and frequent washing tend to make acne worse, not better.
Here is a starter routine based on advice from the AAD and MedlinePlus:
- Wash your face when you wake up, before bed and after sweating, using a mild, nondrying cleanser and your fingertips. Do not wash more than twice a day unless you have been sweating.
- Pat dry and apply your acne treatment as a thin layer over the whole acne-prone area, not just on visible spots.
- Follow with a moisturizer labeled "non-comedogenic," "won't clog pores" or "oil free" to calm dryness from treatment.
- Choose water-based or non-comedogenic makeup and remove it fully before bed.
- Shampoo regularly if your hair is oily, and avoid tight hats or headbands that rub the skin.
- Keep your hands off: no picking, squeezing or popping.
If you want a minimal framework to build on, our basic three-step skincare routine for adults works well alongside acne products.
Common mistakes
- Quitting too early. Stopping a product after one or two weeks means you never find out if it works. Give it at least 4 to 6 weeks.
- Using too many actives at once. Stick to one or two products.
- Spot treating only. Acne medicine works best spread thinly over the whole area where you break out, because it also prevents new spots.
- Scrubbing hard. The AAD warns that scrubbing irritates acne-prone skin and worsens acne.
- Picking and popping. This raises the risk of infection, dark marks and scars. If you already have lingering redness, our article on red acne marks and how to fade them can help.
- Using oral antibiotics alone. Without benzoyl peroxide or another topical treatment, resistance becomes more likely.
When to see a doctor
See a doctor or dermatologist if any of the following apply to you:
- You have painful nodules or cysts, which can scar.
- Your acne is leaving scars or dark marks, or is getting worse.
- Several months of over-the-counter treatment and self-care have not helped (MedlinePlus).
- You have a large number of spots on your face, chest and back (NHS).
- Acne is making you feel very low, anxious or withdrawn. Untreated severe acne can contribute to depression.
- Acne appeared suddenly in adulthood or after starting a new medicine such as a steroid or testosterone.
- You are pregnant or planning a pregnancy and need to know which treatments are safe.
- A baby's acne has not cleared within 3 months.
Frequently asked questions
Is adapalene or benzoyl peroxide better for acne?
They do different jobs. Adapalene unclogs pores and helps with blackheads and whiteheads, while benzoyl peroxide reduces bacteria and helps red pimples. Many people with mixed acne use both, often adapalene at night and benzoyl peroxide in the morning, and guidelines strongly support combining them.
Why is my acne getting worse after starting a new treatment?
Acne treatments commonly cause redness, dryness, peeling and stinging in the first few weeks, which can make skin look worse before it looks better. If the irritation is mild, keep going and use a gentle moisturizer. If you have severe burning, swelling or blistering, stop and talk to a doctor or pharmacist.
Can diet cause acne?
MedlinePlus states that chocolate, nuts and greasy foods have not been shown to cause acne, and that any link with sugar or dairy is still debated. The AAD guidelines found insufficient evidence to recommend dietary changes as acne treatment.
Can I use acne treatments while pregnant?
Some treatments are not safe in pregnancy. Isotretinoin causes severe birth defects, and the NHS and StatPearls advise against topical retinoids during pregnancy too. Ask your doctor or pharmacist before using any acne product if you are pregnant, breastfeeding or trying to conceive.
What to do next
Start by looking closely at your skin and naming what you see: mostly blackheads and whiteheads, mostly red pimples, or deep, painful lumps. For mild acne, pick one over-the-counter ingredient that matches your main type, use it every day for at least 6 weeks, and pair it with a gentle cleanser and non-clogging moisturizer.
If you have nodules, scarring or no improvement after two to three months, book an appointment with your doctor or a dermatologist. For younger readers, our teen skincare routine covers the basics in more detail.
Sources
- Reynolds RV, et al. Guidelines of care for the management of acne vulgaris. Journal of the American Academy of Dermatology, 2024
- American Academy of Dermatology: 9 things to try when acne won't clear
- American Academy of Dermatology: How to get clearer skin
- NHS: Acne treatment
- MedlinePlus: Acne
- StatPearls (NCBI Bookshelf): Acne Vulgaris
Last reviewed: October 2026.

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