Acne: Why It Happens and What Genuinely Clears It
Acne happens when the tiny oil glands attached to hair follicles produce more oil under hormonal influence, the follicle opening clogs with oil and dead skin, and bacteria that normally live there multiply and inflame it. That produces blackheads, whiteheads, red bumps, pus-filled spots and, in more severe acne, deep tender nodules that can scar. It is not caused by dirt, and washing harder makes it worse. Treatment works but is slow: almost nothing shows a real difference before six to eight weeks, and most regimens are judged at three months. Mild acne usually responds to benzoyl peroxide or a topical retinoid applied to the whole affected area rather than dabbed on individual spots. Moderate acne often needs a combination, sometimes with an antibiotic, which should never be used alone because of resistance. Severe or scarring acne is treated with oral isotretinoin under specialist supervision, and must never be taken in pregnancy. The single most damaging thing people do here is apply a steroid or skin-lightening cream to the face: it looks better for two weeks and then produces a worse, harder-to-treat acne that flares every time the cream is stopped.
Health writers · Aslam Clinic
What acne actually is
Every hair on the face and trunk sits in a follicle with a small oil gland attached. From puberty onwards, hormones make those glands produce more oil. Three further things go wrong at the same time: the lining of the follicle sheds cells that stick together instead of washing away, the opening plugs, and a that lives harmlessly on everyone's skin, Cutibacterium acnes, multiplies inside the sealed follicle. The immune system reacts to that, and the redness, swelling and tenderness of a spot are the rather than the infection itself.
A plugged follicle that stays open oxidises at the surface and looks black — a blackhead. The black is not dirt and does not wash off. One that closes over is a whitehead. When the wall of a plugged follicle bursts under the skin, the contents spill into the surrounding tissue and produce the deep, sore lump that takes weeks to settle and is the kind most likely to scar.
Acne is a condition rather than an event: it runs for years in most people and is managed rather than cured until it burns out. Understanding that sequence explains why treatment looks the way it does. Almost every effective acne treatment works at the plug or the inflammation stage, and almost every one of them is applied to the whole area at risk, because the you can see today started forming several weeks ago and the one you are preventing has not appeared yet.
What causes it, and what does not
Hormones and genetics do most of the work. If both parents had significant acne, you are considerably more likely to. Beyond that, the honest list of contributors is shorter than the internet suggests.
- Does contribute: puberty and the menstrual cycle; polycystic ovary syndrome, which raises androgen levels and is suggested by irregular periods, excess facial or body hair and weight gain alongside acne; anabolic steroids and some bodybuilding supplements; certain prescribed medicines; heavy hair oils and pomades along the hairline; friction from helmets, straps and masks; humidity and sweat.
- Contributes modestly: a diet very high in refined carbohydrate and sugar, which raises and the hormones that follow it. Skimmed milk has been linked in several studies. The effect is real but small, and no diet clears moderate acne on its own.
- Does not cause it: dirt, infrequent washing, chocolate, fried or spicy food as such, masturbation, or shaving. Sexual activity has nothing to do with it, and neither does moral behaviour, despite what a great many people are told.
Washing more than twice a day, using hot water, or scrubbing with a rough cloth or a granular scrub damages the skin barrier, provokes more inflammation and makes treatment harder to tolerate. A gentle non-soap cleanser twice a day is the whole of the washing advice.
The kinds of acne, and what each usually needs
| Type | What it looks like | Usual first approach | Scarring risk |
|---|---|---|---|
| Comedonal | Blackheads and whiteheads, few red spots | A topical retinoid applied thinly to the whole area at night | Low |
| Mild inflammatory | Some red bumps and pus spots with the comedones | Benzoyl peroxide, or a benzoyl peroxide and retinoid combination | Low |
| Moderate | Many red and pus-filled spots, face and often chest or back | Topical combination, with an oral antibiotic course added if needed | Moderate |
| Severe or nodulocystic | Deep, painful nodules and cysts; spots joining together | Specialist referral; oral isotretinoin is the standard treatment | High — treat early |
| Hormonal pattern in adult women | Jawline and chin, flaring before periods, often deep | As above, plus assessment for polycystic ovary syndrome and hormonal treatment options | Moderate |
| Steroid-induced | Uniform small red bumps where a cream was applied, skin thin and red | Supervised withdrawal of the cream; expect a rebound flare | Moderate, plus lasting redness |
How treatment is actually used
Benzoyl peroxide is available without a prescription, kills the bacterium without breeding , and is the backbone of most regimens. Lower strengths work about as well as higher ones and irritate less, so there is no advantage in reaching for the strongest tube. Start every second night, apply a pea-sized amount across the whole affected area rather than on spots, and build up as the skin tolerates it. It bleaches towels, pillowcases and coloured clothing permanently, which is worth knowing before it happens.
Topical retinoids, such as adapalene and tretinoin, unplug the follicle and are the treatment that most reliably prevents new comedones. They cause dryness, peeling and a flare in the first two to four weeks in most people, which is expected and not a reason to stop. Use at night, use a moisturiser, and use sunscreen — retinoids make skin more sun-sensitive, which matters here. They must not be used in pregnancy.
Antibiotics, topical or oral, reduce and load. Two rules govern them and both are broken constantly. First, an antibiotic should never be used alone for acne; pairing it with benzoyl peroxide works better and sharply reduces the emergence of resistant organisms. Second, a course has an end — usually a few months — after which the topical treatment continues without it. Acne treated with rolling antibiotic courses for years is how resistant skin flora are created, and Pakistan already has a serious resistance problem. Our article on antibiotics and resistance explains why that matters beyond your skin.
Oral isotretinoin is the only treatment that produces long-term in a majority of people with severe acne. It is a specialist medicine with real requirements: strict pregnancy prevention, monthly review, blood tests for liver and , and management of the dry lips, eyes and nose that are a near-universal . It is not a cream to be bought on a friend's recommendation, and dosing is entirely a prescriber's decision.
Hormonal options — combined hormonal contraception, or an anti-androgen tablet — help many adult women with jawline acne that flares with the cycle, particularly where polycystic ovary syndrome is present. They are prescription decisions with their own checks.
The steroid and fairness cream trap
This section exists because it is, in a Pakistani clinic, one of the commonest reasons someone presents with acne that will not settle. Potent creams are sold across the counter, and a great many skin-lightening preparations contain a steroid, hydroquinone, or mercury without saying so on the label.
What happens is consistent. For the first two weeks the skin looks calmer and paler, because the steroid suppresses inflammation. Then the skin thins, fine blood vessels become visible, the face reddens, and a crop of uniform small bumps appears — steroid-induced acne, or perioral dermatitis around the mouth. Stopping the cream causes a fierce rebound within days, which pushes people to restart it, and the cycle tightens. Recovery after stopping takes weeks to months and the redness can persist longer. Mercury-containing lighteners additionally cause kidney damage and are banned, but continue to be sold.
Marks, scars and the sun
Two different things are left behind and they need different answers. Dark marks — post-inflammatory hyperpigmentation — are flat brown or grey patches where a spot has healed. They are not scars, they fade on their own, and in brown skin they take longer and look darker than the literature written for European skin describes. The two things that speed them are treating the acne so no new marks form, and daily broad-spectrum sunscreen, because ultraviolet light deepens them and holds them for months. Scars are changes in the skin's contour: pits, ice-pick marks or raised keloid lumps. They do not fade, and they are the reason severe acne is treated early and aggressively rather than waited out.
Picking and squeezing pushes the contents deeper, prolongs the inflammation and is the single behaviour most reliably linked to both marks and scars. Nothing else you do matters as much.
What you can do yourself
- Wash twice daily with a gentle, non-soap cleanser and lukewarm water. That is all the washing that helps.
- Apply treatment to the whole area that breaks out, thinly, and keep going for at least eight weeks before judging it.
- Use a light, non-comedogenic moisturiser. Dry, irritated skin cannot tolerate the treatments that work.
- Use a broad-spectrum sunscreen daily, particularly on a retinoid. Choose a gel or fluid rather than a heavy cream. Sunscreen use at Pakistani latitudes does not meaningfully threaten your levels in normal life.
- Keep hair oils and pomades off the forehead and hairline, and wash pillowcases weekly.
- Do not pick, squeeze or use a needle at home.
- Reduce refined sugar and sweetened drinks — a modest help, and good for other reasons. See our guide to eating well on a Pakistani plate.
- Photograph your face in the same light once a fortnight. Improvement over eight weeks is easy to miss in a mirror and easy to see in a photo.
When to see a doctor
Book an appointment if over-the-counter treatment has not helped after eight to twelve weeks of consistent use, if you have deep painful nodules, if spots are already leaving pitted marks, if acne is affecting your mood, sleep, work or study, or if it has appeared for the first time in adulthood. Women whose acne comes with irregular periods, excess hair growth or weight gain should be assessed for polycystic ovary syndrome. Anyone using a steroid or lightening cream on the face should be seen so that it can be stopped safely rather than abruptly. Early treatment of severe acne prevents scars that no later treatment fully undoes.
Common questions
Still not sure what to do?
Reading about a symptom only goes so far. A doctor who can ask you questions and examine you will get further in ten minutes than any article can.
