How to Get Duac Online in Barcelona

If you want to get Duac online in Barcelona, you can complete an online clinical consultation instead of waiting weeks for a traditional clinic appointment. An EU-licensed doctor reviews your medical history and skin photographs through an asynchronous assessment. When clinically appropriate, the doctor issues an official Spanish REMPE electronic prescription in under 24 hours for you to present at any licensed pharmacy in Barcelona or across the EU. The process costs a flat 40 € with a full refund if treatment is not clinically indicated.

• Fee: 40 € one-off consultation (refunded if treatment is not clinically appropriate).
• Turnaround: Doctor review and prescription issuance in <24 hours when clinically appropriate.
• Format: Asynchronous questionnaire with photo upload — no video calls or waiting rooms.
• Prescription: Downloadable REMPE PDF to present at licensed pharmacies in Spain and across the EU.

How it works — get your consultation in 4 steps

Requesting an online acne assessment is completely digital and takes only a few minutes from your phone or computer.

1. Complete the medical questionnaire: Provide your acne history, current symptoms, and upload clear photographs of the affected skin.
2. Submit your 40 € payment: Checkout securely online. There is no financial risk: if the doctor decides Duac is not clinically appropriate for you, your fee is refunded in full.
3. Doctor clinical assessment: An EU-licensed doctor evaluates your photos and clinical background, issuing an official REMPE electronic prescription in under 24 hours when clinically appropriate.
4. Download your prescription: Access your signed REMPE PDF directly in your patient account to present at any licensed pharmacy in Barcelona or across the EU.

Who qualifies

Duac is a prescription-only combination gel indicated for mild-to-moderate inflammatory acne. A licensed doctor must evaluate your skin photos to ensure topical antimicrobial therapy is suitable for your specific lesion type.

Hi-Doctor exclusively prescribes topical dermatological treatments. Severe, nodulocystic, or deeply scarring acne requires direct physical examination and is referred to in-person care. Oral isotretinoin and oral antibiotics are strictly out of scope for our online service.

What Duac actually does

Duac combines two synergistic active ingredients: clindamycin 1% (a lincosamide antibiotic) and benzoyl peroxide (3% or 5%). Clindamycin inhibits the protein synthesis of Cutibacterium acnes, rapidly suppressing bacterial proliferation inside clogged pores.

Benzoyl peroxide provides potent oxidising antimicrobial action alongside mild keratolytic and comedolytic effects. Crucially, the benzoyl peroxide component prevents C. acnes from developing resistance to clindamycin, which is why clindamycin is never prescribed as a monotherapy.

You apply Duac once nightly to clean, dry skin. Visible changes take time: retinoid or antimicrobial purging and minor dryness can occur in weeks 2 to 6, with meaningful clinical improvement evaluated at 12 weeks, not before. Because prolonged topical antibiotic use increases resistance risks, a Duac treatment course is capped at 12 weeks.

Side effects and when to stop

Most patients experience mild local cutaneous reactions during the initial weeks of application.

• Common reactions: Mild erythema, skin peeling, dryness, burning, and localized stinging.
• Fabric bleaching: Benzoyl peroxide bleaches coloured towels, clothing, and bed linen on contact.
• When to discontinue: Stop treatment and consult a doctor immediately if you develop severe contact dermatitis, intense facial swelling, or persistent abdominal cramping and watery diarrhoea (symptoms of antibiotic-associated colitis).

Why Hi-Doctor vs. walking into a clinic

Navigating public or private healthcare appointments in Barcelona often means enduring significant delays or high specialist fees for routine prescription consultations.

Over 50,000 patients have accessed trusted healthcare consultations through Hi-Doctor, backed by a 4.8/5 Trustpilot rating.