Rosacea
Rosacea is a chronic skin condition causing redness, visible blood vessels, and sometimes bumps on the face. It often flares due to triggers like stress, sunlight, or certain foods.
While the exact cause of rosacea isn’t fully understood, several factors are known to play a role in how it develops:
- Sun Damage: Prolonged UV exposure weakens blood vessels and the supporting collagen around them.
- Aging: As skin becomes thinner with age, underlying veins become more visible.
- Temperature Extremes: Hot showers, as well as exposure to very hot, cold, or windy conditions, can dilate facial vessels.
- Steroid Cream Overuse: Long-term use of topical steroids can thin and damage the skin.
- Medications: Certain drugs, such as steroid tablets or treatments for high blood pressure and heart disease, may contribute to visible veins.
- Lifestyle Factors: Alcohol, smoking, and hot drinks can cause facial flushing and vessel dilation.
- Genetics: Some people are naturally predisposed to rosacea and visible facial veins.
Everyone’s experience with rosacea is different, so identifying and avoiding personal triggers is an important part of managing it.
Rosacea Subtypes
Type 1: Flushing & Redness The mildest form, marked by visible capillaries, sensitive skin, and redness triggered by sunlight, spicy food, or skincare products. Burning or stinging is common.
Type 2: Papular Rosacea Persistent redness with acne-like bumps and pustules. Inflammation often makes the redness appear more intense.
Type 3: Ocular Rosacea Affects the eyes, causing dryness, redness, and a gritty feeling. Eyelids may become red and scaly, needing specific care.
Type 4: Skin Thickening (Rhinophyma) An advanced form where skin—especially on the nose—thickens and swells due to enlarged oil glands.
The Science Behind It
Rosacea is a chronic inflammatory skin condition caused by a combination of vascular, immune, and environmental factors. While the exact cause remains unclear, several key mechanisms explain the persistent redness, flushing, and sensitivity seen in rosacea.
1. Over-Reactive Blood Vessels
People with rosacea have facial blood vessels that dilate too easily. Heat, UV, alcohol, stress, or exercise trigger exaggerated flushing, leading to long-term redness and visible capillaries.
2. Immune System Overactivity
The innate immune system is heightened. Increased levels of inflammatory peptides (such as cathelicidins and KLK5) cause redness, swelling, and acne-like bumps.
3. Impaired Skin Barrier
A weakened skin barrier allows irritants to penetrate easily, making the skin more reactive and sensitive. This contributes to ongoing inflammation.
4. Microbial Imbalance (Demodex Mites)
People with rosacea have higher numbers of Demodex mites, which can trigger or worsen inflammation and sensitivity.
5. Neurovascular Sensitivity
Nerves that control facial blood vessels are over-responsive. This explains burning, stinging, and sudden flushing episodes.
6. UV Radiation
UV exposure drives vascular growth, collagen breakdown, and oxidative stress—making rosacea worse over time.
In Summary
Rosacea develops due to a mix of sensitive blood vessels, immune overactivity, a weakened skin barrier, microbial imbalance, and environmental triggers. This is why rosacea varies between individuals and requires a personalised approach to treatment.
Treatment at a Glance
| Treatment Type | Number of Sessions | Procedure Time | Typical Recovery |
|---|---|---|---|
| Excel® V+ | 3 - 5+ sessions | 20 - 30 minutes | 3 - 5+ days |
| Vbeam® Pulse Dye Laser | 2 - 5+ sessions | 10 - 30 minutes | 3 - 5+ days |
| BBL HERO™ | 2 - 4 sessions | 20 - 40 minutes | 2 - 3 days |
Frequently Asked Questions
While the exact cause of rosacea isn’t fully understood, several factors are thought to play a role:
- Genetics: Rosacea often runs in families, suggesting a genetic link.
- Immune Response: An overactive immune reaction to certain bacteria or environmental factors may contribute.
- Blood Vessel Function: Irregular blood vessel activity can lead to persistent redness and visible veins.
- Skin Mites (Demodex): People with rosacea often have higher numbers of these naturally occurring skin mites.
- Environmental and Lifestyle Triggers: Common flare-up triggers include sun exposure, spicy foods, alcohol, stress, temperature extremes, and certain skincare products.
Important ACC & Treatment Disclaimer
ACC funding eligibility is determined by the Accident Compensation Corporation on a case-by-case basis. Approval is dependent on injury acceptance, clinical indication, and ACC policy at the time of application. Not all treatments offered at Scars & Lasers are ACC-funded. Private fees may apply for unfunded components of care.
Learn more about ACC IncidentsPrecision vascular laser care to calm redness, reduce flushing, and restore a more even, resilient complexion.
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