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All About Rosacea Explained

By SL Aesthetic Clinic
All About Rosacea Explained

Rosacea and ‘rosy cheeks’ can sometimes be misunderstood as the same thing, but for those suffering from the actual condition of rosacea, it definitely is not the same. ‘Rosy cheeks’ brings along the visual image of youth, vitality, and bright smiles. Rosacea? For rosacea sufferers, instead of a cheerful image, it often reminds them of skin that feels like its burning, painful sensations, and frustration over not being able to fully control this condition. Rosacea is a common skin condition, yet often misunderstood. This article will provide a comprehensive explanation of what rosacea really is to help make things clear for those who are looking to understand this condition better, through:

  • Helping you understand what rosacea is and the types of rosacea,
  • How rosacea and acne are related (Or are they?),
  • Rosacea triggers in Singapore,
  • And whether rosacea can go away with time or whether it can be prevented.


What is Rosacea?

Rosacea is a chronic inflammatory disorder primarily of the facial skin where the causes of it is still unclear. There is no permanent cure for rosacea, however medical therapy is available in Singapore to control or reverse its signs and symptoms. The British Association of Dermatologists’ mentions that ‘the rash and the blushing associated with rosacea can lead to embarrassment, lowered self-esteem and self-confidence, anxiety and even depression’. If that sounds rather drastic for a skin condition involving a ‘rash and blushing’, it is because it is actually a rather severe skin condition to have for the fact that it is a chronic condition (lasting for years and years) and involves recurrent flares of skin inflammation, which affect not just the face but also can involve the neck, chest, and shoulders. The ‘rash and blushing’ or constant redness happens from excessive dilation of the facial blood vessels triggered by inflammatory pathways in the body. It typically appears with the common symptoms which accompany inflammation, such as burning and stinging sensations, swelling or oedema, and pustules on the skin.

Also Read: Rosacea Treatment – What You Need To Know

There are currently several different types of rosacea, as well as multiple triggers of rosacea that have been studied. However, the triggers of rosacea in different individuals may have several unproven theories (e.g. blood vessel abnormalities, or large numbers of tiny mites called Demodex Folliculorum on the skin, or bacteria in your gut) which can lead to misinformation or even being treated wrongly for other skin disorders like dermatitis or eczema. Generally, rosacea:

  • Predominantly affects fair-skinned people, but may affect all skin types
  • Commonly appears around 30 to 60 years old, but can also appear in young adulthood
  • Is more common in women, but may be more severe when affecting men
  • Is more prevalent in those with Celtic origins (e.g. Scottish or Irish people)
  • Is clinically diagnosed by transient, recurrent or persistent skin erythema (redness) and irregular skin thickening changes in line with the different subtypes of rosacea


Types Of Rosacea

For the classification of rosacea, there are currently 4 different subtypes of this skin condition.

Erythematotelangiectatic rosacea (ETR)

Erythematotelangiectatic rosacea (ETR)

Microscopic examination of the cells of people with ETR show that there are typically non-specific features, other than the presence of enlarged, dilated, non-lymphatic small blood vessels (capillaries) and veins in the upper and middle parts of the skin layer. These capillaries frequently have bizarre shapes. Assessing the skin cells also show mild-to-moderate swelling that might not be visible to the naked eye. Inflammation typically occurs throughout all skin layers, with the levels of inflammation changing depending on the trigger. To distinguish ETR, it commonly has:

  • Frequent facial flushing and persistent redness over the nose and cheeks (‘erythema’)
  • Telangiectasias is present (dilated or broken blood vessels located near the surface of the skin or mucous membranes such as around the creases of your nose. They often appear as fine pink or red lines, which temporarily whiten when pressure is applied on them)
  • Facial edema (swelling), burning, or stinging


Inflammatory Rosacea (Papulopustular)

Inflammatory Rosacea (Papulopustular)

Inflammatory rosacea includes patients who develop papules or pustules usually over the central regions of the face, hence the word ‘papulopustular’. A papule is a raised area of skin tissue that’s less than 1 centimeter around, and a pustule is a similar form of raised skin except with yellowish fluid inside called pus. They can be usually mistaken as acne, and rosacea used to be known as ‘rosacea acne’ (Read below in ‘What is Rosacea Acne?’). In severe cases, these episodes of inflammation can lead to chronic facial swelling. Other than redness, they are distinguished by:

  • Papules or pustules that come and go
  • Usually without blackheads or whiteheads
  • Raised, scaly red patches on the skin (‘plaques’)


Phymatous Rosacea

Phymatous Rosacea

When it comes to phymatous rosacea, it’s not just about skin redness and blushing. Have you heard of the term ‘strawberry nose’? That is actually a form of phymatous rosacea, called ‘rhinophyma’ (rhino referring to nose). ‘Phymas’ are nodules, swelling, or small, rounded tumours of the skin, hence the term ‘phymatous’ rosacea as nodules can form over the nose, chin, forehead, ears, and eyelids. This form of rosacea happens more often in men and those of European descent, and can usually be distinguished by:

  • Obvious skin thickenings and irregular surface nodules around the affected areas, especially of the nose – looks like red and bumpy lumps under the skin
  • ‘Spider web veins’ (telangiectasia) are also obvious around the affected areas
  • Scarring and thickening of skin cells


Ocular Rosacea

Ocular Rosacea

Ocular rosacea can be one of the more difficult forms of rosacea to handle due to the involvement of the eyes. It can cause near constant watering and tearing up during a flare, and can also result in blocked oil ducts of the eyelids that can cause crusting. It is often misdiagnosed in the beginning as an eye infection, leading to a late diagnosis and treatment. They can be distinguished with:

  • Irritation of the eyes, redness, and a watery sensation (tearing up)
  • Foreign body sensation, like there is something gritty in your eye
  • Dryness, blurry vision, and sensitivity to sunlight
  • Blepharitis (inflammation of the eyelids, and a crusty yellow layer forming)
  • Conjunctivitis (‘Pink eye’ – pus discharge and leaking around the eye can make it hard to open)


Read More: The Four Types of Rosacea – All About it

Symptoms of Rosacea

‘Diagnostic features’ means the signs that clinicians look out for to diagnose rosacea. The person suffering from rosacea may have major and secondary features or symptoms.

Diagnostic Features

Major Symptoms

Secondary Symptoms

∙ Persistent centro-facial erythema (redness) associated  with aggravation by trigger factors

∙ Phymatous changes (Nodules, bumps on the skin with or without pus)

∙ Flushing/transient erythema (Redness)

∙ Inflammatory papules and pustules

∙ Telangiectasia (Visible broken spider veins)

∙ Ocular manifestations (Eyelid telangiectasia, blepharitis, conjunctivitis)

∙ Burning sensation

∙ Stinging sensation

∙ Edema/Swelling

∙ Dry sensation of the skin

Read More: How To Tell If Your Acne Is Actually Rosacea

What Does Rosacea Look Like?

Right at a glance, rosacea tends to look like a tendency to blush easily. When looking at it closer, those red areas may become a persistent and deeper shade of red, with small dilated blood vessels, bumps or scaly skin, or pus-filled spots. During a bad flare, there can be swelling around the red area, especially if the eyes are affected. When phymatous changes happen, nodules tend to grow. Such areas like over the nose or chin can become enlarged, bulbous, and red.

What Is Rosacea Acne?

‘Rosacea Acne’ is actually an older term for inflammatory or papulopustular rosacea before the right classifications came along. This is because of the formation of papules or pustules, which take on the look of an acne flare up. The difference between acne vulgaris (the skin condition where hair follicles become clogged with dead skin and oils resulting in inflammation) and acne rosacea is that rosacea is usually not accompanied by blocked pores, or comedones. In a true acne vulgaris condition, there is the presence of blackheads and whiteheads.

Rosacea sufferers have the formation of pimple-like nodules with or without pus, but without the blocked pores; and unlike acne vulgaris which appears anywhere on the face, rosacea is typically localised over the central face (e.g. medial cheek under the eyelids, nose, forehead).

Who Gets Rosacea?

Those who tend to get rosacea acne are women, and most likely with a family history of rosacea although this is not a prerequisite of getting rosacea acne. Individuals who have a more extreme reaction to temperature changes, heat, cold, exercise, UV radiation, and spicy food and alcoholic beverages also tend to be more susceptible to rosacea. They tend to have transient receptor potential channels (TRP channels) in the skin that are more sensitive to ‘inflammatory’ substances like those, which become activated faster hence producing redness. It is less frequent in those with naturally darker skin, and is uncommon in children.

Is Rosacea Genetic?

Although rosacea seems to run in families, there is no clear genetic link and scientists are still researching theories on how rosacea gets inherited. Overall, more family members with rosacea usually means a higher risk of inheriting it.

What Triggers Rosacea?

Common triggers of rosacea are:

  • Sun Exposure – UV light is dangerous for rosacea since it stimulates innate inflammation; that’s the reason why skin barrier protection should be integrated into rosacea management (at least SPF 30)
  • Stress – Stress often releases hormones like corticotropin-releasing hormone (CRH), glucocorticoids, and epinephrine which can trigger inflammation pathways
  • Hot and Cold Weather – The external temperature can affect the dilation or constriction of blood vessels in your face
  • Consumption of hot beverages or alcohol or spicy foods – Dietary triggers are also frequently noted by rosacea sufferers, although there is a lack of research in this area. In one survey by the National Rosacea Society of over 400 patients, 78% had altered their diet due to rosacea. Of this group, 95% reported a subsequent reduction in flares.


Read More: What Causes Rosacea?

Does Rosacea Get Worse With Age?

Unfortunately, yes. Although the causes of rosacea are many and cannot be the same for each person, the tendency is that it gradually worsens with age especially if left untreated. Rosacea is usually manifested as flushing in patients in their 20s, becomes troublesome to patients in their 30s, and may continue to progress thereafter.

Is Rosacea Contagious?

No, rosacea is not contagious! You cannot pass on rosacea from one person to another person. This skin condition is not bacteria-led but more of an immune condition, and touching someone with rosacea will not cause that person to develop rosacea.

Is Rosacea Connected To Other Skin Conditions?

The National Rosacea Society found that of 1,141 rosacea patients, 55% had suffered from another skin disorder at some point in their lifetime. Commonly reported skin conditions are atopic dermatitis/eczema, scalp dermatitis, and acne vulgaris.

Does It Go Away With Time?

Rosacea flare ups tend to come and go in cycles. Over time and with the right rosacea treatments that are suitable for your current condition, there can be longer periods between flare ups, or flare ups will tend to recover quicker. So while there is unfortunately no cure for rosacea, time, good treatment (such as laser treatment for rosacea in Singapore), and a whole lot of patience can go a long way.

Can Allergies Cause Rosacea?

Although allergies in itself cannot 100% cause rosacea in an individual, a strong allergy reaction can trigger a rosacea outbreak. Substances which cause a systemic inflammatory reaction (such as coming into contact with pollen a.k.a. ‘Hayfever’, or going into an old house with plenty of dust mite colonies) can trigger the same inflammatory pathways which are involved in rosacea. It can cause the already sensitive blood vessels in your face to dilate further, bringing a blood rush to those areas, along with stinging, burning, and watery eyes. All this along with the irritation that the allergy itself brings – watery sinuses and sneezing – it is always a good idea to identify your allergens and have medication on hand for the times that it is unavoidable.

Can You Prevent Rosacea?

While rosacea as a condition cannot be completely prevented, flare ups can often be controlled well enough. This includes lifestyle changes such as:

  • Identifying and avoiding triggers that worsen your symptoms
  • Washing your face with mild, unscented cleansers to avoid irritation
  • Wearing sunscreen daily or using a sun hate while out in the sun
  • Watching your diet – spicy foods, alcohol, and even chocolate (unfortunately!) can be triggers


Read More: How to Prevent Rosacea?

Patients struggling with controlling their rosacea also have other options. Rosacea acne treatment in Singapore also includes several treatments that can only be prescribed or performed by certified doctors such as oral/topical antibiotics or laser treatment. Trial and error may be required even when working with a reputable dermatological team since a medication that may have worked for years can seem to stop suddenly, as body and skin changes during ageing. If you are struggling with identifying and treating your rosacea, have a chat with one of our dermatologists today to see how we can help.

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