Sensitive skin treatment in Singapore:
sensitivity, rosacea or something else

What is sensitive skin, and why is it a diagnosis of exclusion?

Sensitive skin is defined by what the person feels rather than what the doctor sees. The International Forum for the Study of Itch's expert group settled in 2017 on a definition: a syndrome of unpleasant sensations, stinging, burning, pain, itch or tingling, in response to stimuli that should not normally provoke them, which cannot be explained by any other skin disease. Redness may or may not be visible. That last clause is the clinically useful part. Before skin is called sensitive, the diseases that cause the same symptoms have to be looked for, and the three that most often hide under the label are rosacea, perioral dermatitis and Demodex overgrowth.

Surveys across countries suggest that a majority of women and a large minority of men describe their skin as sensitive to some degree, so the label on its own tells a doctor little. What matters is the pattern: where the skin reacts, to what, with what visible change, and for how long. True sensitive skin is usually a barrier problem combined with nerve fibres that fire too readily, and it improves when the barrier is repaired and the triggers removed. A medical condition filed as sensitivity does not, and it is often made worse by the very products bought to soothe it.

What sensitive skin tends to look like

• Stinging or burning within minutes of applying a product, sunscreen or even water
• Flushing with heat, wind or air-conditioning that settles within the hour
• Tightness and fine flaking, often on the cheeks, with a history of over-cleansing or many actives
• No fixed redness, no bumps and no thread veins once the skin has calmed

Sensitive skin, rosacea, perioral dermatitis or Demodex: how are they told apart?

The four are separated by pattern and history at examination, sometimes with dermoscopy or a skin surface sample. The table sets out the features Dr Sin Yong looks for and where each is covered in full on this site.

Two further look-alikes are worth naming. Seborrhoeic dermatitis gives greasy scale in the eyebrows, the sides of the nose and the scalp, and contact allergy gives an itchy, often weeping rash in the shape of whatever touched the skin; both are referred for their own management. Rosacea is the commonest of the group and the one most often missed in Asian skin, where the redness is less obvious and the stinging, bumps and sensitivity to products are what the person notices. The full owner page on this site is rosacea treatment Singapore, and the condition guide is rosacea and facial redness.

“Sensitive skin is where I start looking, not where I stop. Half the faces that arrive with that label have rosacea, and the other half have a routine that would make anyone's skin sting.”

Dr Sin YongOn sensitive skin

Which lasers and devices are gentler on sensitive skin?

Gentleness is a property of how a device acts on the skin, not of its brand. Devices that leave the surface intact, deliver energy slowly or mechanically rather than as a sharp thermal pulse, and protect the epidermis with cooling are weighed first. Devices that ablate, peel or heat the surface sharply are weighed last, or not at all, until the skin is calm. Which is chosen depends on the diagnosis made in the previous section, because a laser that calms the vessels of rosacea does nothing for a barrier that is simply over-stripped.

In rosacea the devices directed at vessels are chosen by vessel colour and depth, as set out on the redness laser comparison, and they are run only once the medical side of the condition is managed. In sensitive skin without a diagnosis, the first treatment is usually no device at all: the routine is stripped back, the barrier is repaired, and the skin is reviewed. A device is added when there is something left for it to do.

Why does a test spot come before a full-face treatment?

A test spot is a small area treated at the planned settings and reviewed before the rest of the face is treated. The logic is simple. Reactive skin is reactive precisely because its response to a stimulus cannot be predicted from the chart alone, and the cost of being wrong on a square centimetre behind the ear or at the jaw angle is small, while the cost of being wrong across both cheeks is widespread redness, possible pigment change and a person who will not return. The test answers two questions: does the skin tolerate the energy, and does it do what was intended.

How a test spot is used

• The spot is placed where a reaction would be hidden and representative, usually the pre-auricular skin or the lower jaw, not the centre of the cheek
• Settings are those planned for the full treatment, not a softened version, or the test proves nothing
• The spot is reviewed after the window in which a reaction would appear, which differs by device
• Product patch testing is different: a new skincare product is applied to the inner forearm or behind the ear daily, repeatedly, before it goes near the face
• Where contact allergy is suspected, formal patch testing with standardised allergens is a dermatology referral, not a clinic test spot

In Fitzpatrick III to V skin, which is most of Singapore, the main risk a test spot guards against is post-inflammatory hyperpigmentation, a brown mark that can outlast the problem it was meant to treat. Dr Sin Yong sets the test conservatively and reads the spot himself; a reaction is a result, not a failure, because it changes the plan before harm is done.

What should be stopped before a procedure on sensitive skin?

The principle is that the skin arrives at a procedure as calm and as predictable as possible, with nothing in the routine that will either amplify the reaction or confuse its reading afterwards. The exact list depends on the procedure and is given at consultation; what follows is the general pattern.

What continues is a gentle cleanser, a plain fragrance-free moisturiser and sunscreen. The panthenol and barrier page describes what repair looks like in the lead-up to a treatment, and the aftercare hub covers what to do afterwards by treatment. People with a rosacea diagnosis also keep taking any prescribed medication unless told otherwise, since stopping it to prepare for a laser makes the laser's job harder.

How Dr Sin Yong assesses sensitive skin, and when to see a doctor

Assessment starts with the history, because the diagnosis usually sits in it: what the skin reacts to, where, how fast, whether redness is fixed or transient, whether there are bumps and whether they have blackheads, what creams have been used and for how long, and whether the eyes are gritty. Examination follows, with magnification where bumps or scale are present, and a skin surface sample or dermoscopy where Demodex is a question. The Fitzpatrick type is recorded because it sets how conservatively any device is run.

See a doctor when

• Redness has become fixed rather than coming and going, or thread veins are visible
• Bumps are appearing without blackheads, especially on the central face or around the mouth
• A steroid cream is being used on the face, or the rash flares each time one is stopped
• The eyes are gritty, red or easily tired alongside facial redness
• The skin reacts to nearly everything despite a routine of three plain products
• Itch and flaking at the lash line accompany a flare that has not responded to usual care

What decides the plan

• The diagnosis: sensitive skin, rosacea, perioral dermatitis, Demodex overgrowth or something else
• Whether the skin is currently flaring, since nothing is done to flaring skin except calming it
• The state of the barrier and what the routine is doing to it
• Skin type and pigment risk
• Whether medical treatment is needed before any device has a role

Aftercare in broad terms is the same for every treatment on reactive skin: a stripped-back routine, no actives until the skin has settled, sun protection daily, and review before anything is repeated. Where the diagnosis is a medical condition that needs ongoing prescription care, that care continues alongside, and where a rash is unclear or widespread, Dr Sin Yong refers to a dermatologist rather than guessing.