Rosacea ✅

Related Subjects: | Nikolsky's sign | Koebner phenomenon | Erythema Multiforme | Pyoderma gangrenosum | Erythema Nodosum | Dermatitis Herpetiformis | Lichen Planus | Acanthosis Nigricans | Rosacea | Acne Vulgaris | Alopecia | Vitiligo | Urticaria | Basal Cell Carcinoma | Malignant Melanoma | Squamous Cell Carcinoma | Mycosis Fungoides (Sezary Syndrome) | Xeroderma pigmentosum | Bullous Pemphigoid | Pemphigus Vulgaris | Seborrheic Dermatitis | Pityriasis/Tinea versicolor infections | Pityriasis rosea | Scabies | Dermatomyositis | Toxic Epidermal Necrolysis | Stevens-Johnson Syndrome | Atopic Eczema/Atopic Dermatitis | Psoriasis

🌹 Rosacea is a chronic, relapsing inflammatory skin disorder affecting the central face. It causes flushing, persistent erythema, telangiectasia, papules and pustules, but unlike acne vulgaris there are usually no comedones 🚫. It is not infectious 🦠❌, although Demodex mites, innate immune activation and vascular dysregulation may contribute.

📖 Overview

• 👩‍🦳 Usually affects adults, especially from middle age onwards.
• 🎯 Common sites: cheeks, nose, chin and central forehead.
• 🔥 Symptoms may include burning, stinging, skin sensitivity and flushing.
• 🔁 Rosacea is chronic and relapsing, so treatment aims to control symptoms rather than cure the condition.
• 💊 Topical steroids can worsen rosacea and may cause steroid-induced rosacea-like dermatitis.

🧬 Pathophysiology

• 💓 Vascular dysregulation: exaggerated vasodilation causes flushing and persistent erythema.
• 🔥 Innate immune activation: inflammatory mediators drive papules, pustules and skin sensitivity.
• 🕷 Demodex folliculorum: increased mite density may trigger inflammation in some patients.
• 🧠 Neurovascular sensitivity: heat, alcohol, spicy foods and stress can provoke flushing, burning or stinging.
• 👃 Chronic inflammation: may lead to sebaceous gland and connective tissue overgrowth, causing phymatous change such as rhinophyma.

🚩 Common Triggers

• ☀️ Sunlight and UV exposure
• 🔥 Heat, hot baths, saunas and hot weather
• 🍷 Alcohol
• ☕ Hot drinks
• 🌶 Spicy foods
• 🏃 Exercise
• 😰 Emotional stress
• ❄️ Cold wind or temperature extremes
• 💊 Topical corticosteroids, irritating cosmetics and some vasodilating drugs

🔍 Clinical Features

• 🌡 Flushing: episodic facial redness, often triggered by heat, alcohol or emotion.
• 🔴 Persistent erythema: fixed central facial redness.
• 🩸 Telangiectasia: visible small blood vessels on the face.
• ⚪ Papules and pustules: inflammatory lesions without comedones.
• 🧴 Skin sensitivity: burning, stinging, dryness or intolerance of skincare products.
• 👃 Phymatous change: thickened irregular skin, most classically rhinophyma.
• 👁 Ocular symptoms: gritty eyes, blepharitis, conjunctival redness, dry eye, photophobia or visual disturbance.

📊 Clinical Patterns

• 🌡 Erythematotelangiectatic rosacea: flushing, persistent erythema and telangiectasia.
• 🔴 Papulopustular rosacea: papules and pustules on a background of erythema; no comedones.
• 👃 Phymatous rosacea: thickened skin and sebaceous overgrowth, often affecting the nose.
• 👁 Ocular rosacea: eyelid inflammation, dry eye, conjunctivitis or keratitis.

🧪 Diagnosis

• ✅ Diagnosis is usually clinical.
• 🔍 Look for central facial erythema, flushing, telangiectasia, papules/pustules and ocular features.
• 📝 Ask about triggers, topical steroid use, skincare products and eye symptoms.
• 🚫 Key distinction from acne vulgaris: rosacea usually has no comedones.
• ⚖️ Consider alternative diagnoses if atypical: acne vulgaris, seborrhoeic dermatitis, periorificial dermatitis, lupus erythematosus, photosensitivity reactions or drug-induced eruptions.

💊 Management - NICE CKS Aligned

• 🌿 General measures for all patients:
  • 🧼 Use gentle skin cleansers and avoid abrasive or alcohol-based products.
  • ☀️ Use daily broad-spectrum sunscreen, ideally SPF 30 or above.
  • 🧭 Identify and avoid personal triggers where practical.
  • 💊 Avoid topical corticosteroids on the face unless specifically advised.
  • ⏳ Explain that improvement often takes several weeks and relapse is common.
• 🔴 Persistent facial erythema:
  • 💧 Consider topical brimonidine gel for troublesome persistent erythema.
  • ⏱ Warn that benefit is temporary and redness may recur when the effect wears off.
  • ⚠️ Use caution in people with significant cardiovascular disease, cerebral insufficiency, depression, or hepatic/renal impairment.
  • ✨ Laser or intense pulsed light therapy may help telangiectasia or persistent erythema, but NHS availability may be limited.
• ⚪ Mild to moderate papulopustular rosacea:
  • 💊 Consider topical ivermectin, topical metronidazole or azelaic acid.
  • ⚖️ Choice depends on local formulary, tolerability, pregnancy status and patient preference.
  • 📅 Review response after an adequate trial, commonly around 6–12 weeks.
• 🔥 Moderate to severe papulopustular rosacea:
  • 💊 Consider adding an oral tetracycline such as doxycycline, usually for a time-limited course.
  • ⬇️ Step down to topical maintenance once controlled where possible.
  • 🤰 Avoid tetracyclines in pregnancy, breastfeeding and children under 12 years.
  • 💊 Consider erythromycin if tetracyclines are unsuitable, following local guidance.
• 🚑 Severe, refractory or recurrent disease:
  • 👨‍⚕️ Consider referral to dermatology.
  • 💊 Specialist options may include low-dose oral isotretinoin or procedural treatment for phymatous disease.

👁 Ocular Rosacea

• ❓ Ask specifically about gritty eyes, dry eyes, red eyes, eyelid crusting, photophobia, pain or visual disturbance.
• 🧼 For mild symptoms: advise lid hygiene and lubricating eye drops.
• 💊 Oral tetracyclines may be used for significant blepharitis or meibomian gland disease where appropriate.
• 🚨 Urgent ophthalmology / same-day eye assessment: eye pain, photophobia, reduced vision, corneal opacity, suspected keratitis or marked unilateral redness.
• 👁 Refer to ophthalmology if ocular symptoms persist despite initial treatment.

🚑 When to Refer

• ❓ Diagnostic uncertainty or atypical features.
• 🔥 Severe, refractory or recurrent rosacea despite appropriate treatment.
• 👃 Phymatous disease such as rhinophyma.
• 🧠 Significant psychological distress or major impact on quality of life.
• 👁 Ocular red flags: pain, photophobia, reduced vision or suspected corneal involvement.
• 🧒 Children with suspected rosacea, as this is uncommon and needs specialist assessment.

🖼 Images

📝 Exam Pearls

• 🚫 No comedones helps distinguish rosacea from acne vulgaris.
• 🌡 Flushing often precedes fixed erythema and papulopustular disease.
• 💊 Topical steroids can worsen rosacea.
• 👃 Rhinophyma is a phymatous complication, seen more often in men.
• 👁 Ocular rosacea can threaten sight if keratitis develops.
• ☀️ Sunscreen and trigger avoidance are core management, not optional extras.

🧠 Teaching Note

🌹 Rosacea is best thought of as a disorder of vascular reactivity plus cutaneous inflammation. This explains why flushing triggers such as heat, alcohol and spicy foods worsen erythema, while inflammatory lesions respond to topical anti-inflammatory treatments or oral tetracyclines. 🚫 The absence of comedones is clinically useful because acne vulgaris is primarily follicular obstruction with sebum and comedone formation, whereas rosacea is more neurovascular and inflammatory. 👁 Always ask about eye symptoms because ocular rosacea may be missed unless specifically screened for.

📚 References & NICE Resources

• NICE CKS – Rosacea
• NICE CKS – Rosacea management
• DermNet NZ – Rosacea
• Primary Care Dermatology Society – Rosacea