
Rosacea is an inflammatory facial skin disease characterised by flushing, redness, papules (small firm lumps), pustules and telangiectasia (visible dilated blood vessels). Here are some facts about Rosacea:
- Rash affects the nose, cheeks, forehead and chin
- Women mainly affected, age 30-60, with fair skin
- Often starts with temporary facial flushing generally progresses to more obvious permanent redness and swelling
- Early diagnosis and treatment can prevent progression and permanent skin changes
- Multiple triggers exacerbate condition – sunlight, hot weather, hot drinks, spicy food, alcohol, stress and some medications.
- Diagnosis requires at least one of the following primary features:
- Transient redness (flushing)
- Non-transient redness
- Telangiectasia
- Papules or pustules
Secondary features of Rosacea are:
- Scaly, rough, dry skin
- Burning/ stinging sensitive skin
- Oedema
- Phymatous changes (thickened, nodular skin often on nose)
- Inflammation of eyelid and eye
Cause unknown but there is evidence of:
- Overactive immune response with high levels of antimicrobial peptides, cathelicidins, which are inflammatory
- Increased counts of the common skin bacteria – Staph epidermidis and of the hair follicle mite, Demodex folliculorum. These organisms stimulate skin pathogen receptors which increase inflammation
- UVR worsens symptoms of rosacea due to its pro-inflammatory effects
Treatment:
- Avoiding triggers and protecting facial skin are important, particularly as most of the pharmacological treatments for rosacea are unsubsidised or unapproved.
Non pharmacological
- Avoid hot showers, hot drinks, spicy foods, alcohol
- Use non-greasy moisturisers and make-up
- Use a light zinc based sunscreen everyday, like Dermaquest Sheer Zinc SPF 30
- For mild rosacea the addition of an anti-redness serum should be considered, like Aspect Dr Redless Serum
- For persistent red veins can usually be improved with vascular laser treatment
- Warm compresses and massage to affected eyelids and preservative free ocular lubricants to dry eyes
- Surgery often required for phymatous disfigured noses
Pharmacological Treatments
Topical Treatments
- Topical Treatments should be trialled first
- Metronidazole cream (antibiotic cream with anti-inflammatory properties) – applied twice daily for 3-4 months. An improvement in symptoms can be expected in 3-6 weeks and remission may last for 6 months
Oral Treatments
- Oral antibiotics particularly tetracyclines are approved and partially subsidised. They are used to reduce the papules, pustules and eye symptoms of rosacea due to their anti-inflammatory effects. Tetracyclines at lower doses than required for antimicrobial treatment are often very effective eg doxycycline 50mg daily for6-12 weeks
- Medicines to reduce flushing are unapproved but can be helpful eg carvedilol and clonidine.