Acne in Adults & Teens: UK Online Doctor Treatment Guide
Educational information — not medical advice.
This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.
Key points
- Acne affects most teenagers and around half of adults in their 20s and 30s.
- Treatment is stepped: topical retinoids, benzoyl peroxide, then antibiotics, then hormonal or isotretinoin.
- Most regimens take 8–12 weeks to show benefit — consistency matters.
- An online GP can prescribe topical and oral treatments and refer for isotretinoin where appropriate.
- Picking and squeezing worsens scarring — use targeted treatment instead.
What causes acne?
Acne develops when hair follicles become blocked with oil and dead skin cells, then colonised by Cutibacterium acnes bacteria, leading to inflammation. Hormones (especially androgens around puberty, before periods, in PCOS), genetics and certain medications all contribute.
Types of acne
- Comedonal: blackheads and whiteheads.
- Inflammatory: red papules and pustules.
- Nodulocystic: deep painful lumps that often scar — needs aggressive treatment.
Self-care
- Gentle, non-foaming cleanser twice daily.
- Non-comedogenic moisturisers and SPF.
- Avoid scrubbing — it worsens inflammation.
- Don't pick — it drives scarring.
Prescription options
- Topical retinoids (adapalene, tretinoin) — first-line for most acne.
- Topical antibiotic / benzoyl peroxide combinations (Duac, Epiduo).
- Oral antibiotics (lymecycline, doxycycline) for moderate inflammatory acne — usually 12 weeks.
- Hormonal: combined contraceptive pill or co-cyprindiol (Dianette) for women.
- Isotretinoin (Roaccutane): highly effective for severe or scarring acne — prescribed under consultant dermatologist supervision. An online GP can refer.
When an online doctor can help
An online GP can review your skin on video, prescribe topical and oral treatments, monitor progress and refer to a dermatologist for isotretinoin where indicated.
Red flags — when to seek urgent help
Call 999 or go to A&E if you experience any of the following:
- Sudden severe cystic acne in adulthood with hormonal symptoms (possible endocrine cause)
- Acne with rapid weight gain, irregular periods or hair growth (possible PCOS)
Frequently asked questions
Common questions UK patients ask about acne vulgaris.
How an online doctor can help
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This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.
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