Melasma is frustrating because it can fade, return, darken after a sunny weekend, or seem to stop responding to a routine that once helped.

That unpredictability is part of the condition. Melasma is influenced by pigment-producing cells that can be stimulated by several triggers, especially light exposure and hormonal changes. In a place with abundant sunshine like Las Vegas, daily protection becomes part of treatment, not an optional extra.

Thomas Dermatology offers melasma evaluation and treatment through its cosmetic dermatology team in Nevada and Arizona. The right plan starts by confirming the diagnosis and understanding what is driving the pigment for that particular patient.

What Melasma Looks Like

Melasma typically appears as flat patches or spots that are darker than the surrounding skin. It most often develops on areas of the face including the cheeks, forehead, nose, chin, and upper lip.

The color can vary with skin tone and pigment depth. Some patches look light brown, while others appear darker brown or gray-brown.

Melasma is usually not physically painful, but it can have a real emotional impact because it often affects visible areas of the face.

The American Academy of Dermatology notes that a dermatologist can distinguish melasma from other causes of discoloration and create a treatment plan based on skin tone and individual circumstances.

Why Sun Exposure Matters So Much

Ultraviolet light stimulates pigment production. Even when a treatment is working, repeated sun exposure can darken existing melasma or contribute to recurrence.

That makes daily photoprotection one of the foundations of management.

The AAD recommends sun protection for melasma and specifically notes that visible light can worsen the condition, particularly in darker skin tones. Its melasma self-care guidance recommends a tinted broad-spectrum sunscreen containing iron oxide in addition to an SPF of 30 or higher.

A dermatologist can help choose a sunscreen that fits the patient’s skin type, routine, and other treatments.

Do Hormones Cause Melasma?

Hormones can play a role.

Melasma commonly appears during pregnancy and can also be associated with hormonal contraception or hormone therapy. That does not mean every person with melasma has a hormone problem or should stop medication.

The AAD’s review of melasma causes lists pregnancy, certain medications, sunlight, and genetic tendency among recognized factors.

If you suspect a prescription medication is contributing, discuss it with the clinician who prescribed it. Do not stop medication on your own for a cosmetic concern.

Is Heat a Trigger?

Patients often notice melasma seems more active during hot months, but the relationship between heat and pigmentation is more complicated than a simple cause-and-effect rule.

Thomas Dermatology’s melasma service page includes heat among possible contributing triggers. In Las Vegas, heat also changes behavior: people spend more time around intense sun, reflective surfaces, pools, and outdoor activity.

The practical takeaway is to protect the skin consistently, avoid unnecessary overheating when you know it worsens your pigmentation, and track your own patterns instead of assuming every flare has the same cause.

Melasma Is Not the Same as Every Brown Spot

Several conditions can create facial pigment, including sunspots, post-inflammatory hyperpigmentation after acne or irritation, freckles, and other pigmented lesions.

Thomas Dermatology treats a wider range of brown spots and hyperpigmentation, but the correct treatment depends on the diagnosis.

This matters because a laser or peel that is appropriate for one type of pigment may not be appropriate for another. Some aggressive or irritating treatments can actually make melasma darker, especially in skin that develops post-inflammatory pigmentation easily.

Why Melasma Treatment Is Usually a Plan, Not One Procedure

There is rarely a single appointment that permanently eliminates melasma.

A dermatologist may build a plan that combines:

• Daily sun and visible-light protection
• Gentle skincare
• Prescription topical medication when appropriate
• Chemical peels for selected patients
• Microneedling or other procedures in selected cases
• Carefully chosen laser treatment when appropriate
• Maintenance after improvement

Thomas Dermatology’s cosmetic dermatology services include several treatment options for pigment concerns, but they are not interchangeable. Skin tone, pigment pattern, sensitivity, medical history, previous treatment, downtime, and season all matter.

Topical Treatment Often Comes First

Prescription topicals are commonly used as part of melasma treatment. Depending on the patient, a dermatologist may discuss ingredients that reduce pigment production, increase cell turnover, or address inflammation.

These products can be effective, but irritation itself can worsen discoloration in some skin tones. More is not always better.

Use prescription products exactly as directed and let the dermatologist know if burning, peeling, or persistent irritation develops.

Where Chemical Peels Fit

A chemical peel creates controlled exfoliation using a selected solution and depth.

Thomas Dermatology offers medical-grade chemical peels that can be customized for pigment and other concerns. A peel may be one part of a melasma plan, but the type and strength should be selected carefully.

Patients should not assume that a stronger peel produces a better melasma result. Excess inflammation can be counterproductive.

What About Lasers?

Certain laser and light-based technologies may be used for selected pigment concerns, and Thomas Dermatology offers several devices through its cosmetic dermatology program.

Melasma, however, requires cautious patient selection and parameters because heat and inflammation can contribute to recurrence or post-inflammatory hyperpigmentation.

A consultation should answer:

• Is this definitely melasma?
• What is the patient’s skin type?
• Which treatments have already been tried?
• Is the pigment stable or actively worsening?
• How much sun exposure is expected during recovery?
• What maintenance will be needed afterward?

The goal is not to chase every patch with more energy. It is to control pigment while minimizing avoidable irritation.

Sunscreen Has to Be a Daily Habit

Using sunscreen only on pool days is not enough for melasma.

Light exposure happens during driving, errands, outdoor dining, walking between buildings, and normal daily life. In Southern Nevada, that exposure is frequent for much of the year.

A practical routine may include:

• Broad-spectrum SPF 30 or higher
• Tinted sunscreen with iron oxide when recommended
• Reapplication during meaningful outdoor exposure
• Hats and shade
• Avoiding deliberate tanning
• Gentle products that do not sting or inflame the skin

The routine needs to be realistic. The best sunscreen is one the patient can tolerate and use consistently.

Avoid Creating New Pigment Through Irritation

A complicated skincare routine can work against melasma treatment.

Scrubs, frequent exfoliation, strong acids, fragranced products, and too many active ingredients may damage the skin barrier and create inflammation.

The AAD recommends gentle, fragrance-free skincare when products sting or burn because irritation can make dark spots more noticeable.

If your routine includes prescription retinoids, acids, bleaching agents, peels, or procedures, let one clinician see the full picture. Overlapping treatments without coordination can increase irritation.

When to See a Dermatologist for Facial Pigmentation

Schedule an evaluation when:

• Pigment is new or changing
• You are not sure whether the condition is melasma
• Over-the-counter products have not helped
• Products are causing burning or irritation
• Pigmentation worsens after procedures
• You are pregnant or breastfeeding and need safe options
• You have darker skin and are concerned about post-inflammatory pigmentation
• The condition is affecting confidence or quality of life

A dermatologist can confirm whether the discoloration is melasma and discuss which treatments are appropriate for the patient’s skin and health history.

Melasma Care at Thomas Dermatology

Thomas Dermatology provides medical and cosmetic dermatology across Las Vegas, Henderson, and Northwestern Arizona. Its pigment services include dedicated care for melasma, brown spots and hyperpigmentation, chemical peels, lasers, and individualized skincare planning.

Use the Thomas Dermatology locations page to find a nearby office.

Frequently Asked Questions About Melasma

Can melasma be cured permanently?

Melasma can improve significantly, but it is often recurrent. Long-term management usually includes consistent light protection and maintenance tailored to the patient.

Is melasma caused by pregnancy?

Pregnancy-related hormonal changes can trigger melasma in some people, but pregnancy is not the only cause. Sunlight, genetics, certain medications, and other factors can contribute.

Can a laser remove melasma?

Laser treatment may be appropriate for selected patients, but melasma requires careful treatment because excessive heat or inflammation can worsen pigmentation. An individualized evaluation is important.

Is tinted sunscreen better for melasma?

The AAD recommends tinted sunscreen containing iron oxide because visible light can worsen melasma, especially in darker skin tones. A dermatologist can help identify a suitable product.

How long does treatment take?

Melasma usually improves gradually rather than overnight. Timing depends on the pigment, treatment plan, skin type, triggers, and consistency with sun protection.

Treat the Trigger Along With the Pigment

Successful melasma care is not just about fading what is visible today. It is also about reducing the factors that keep stimulating pigment tomorrow.

That is why a personalized plan combines diagnosis, daily protection, appropriate treatment, and maintenance.

Schedule a cosmetic dermatology consultation with Thomas Dermatology to discuss persistent facial pigmentation.

*This article is for general educational purposes and does not replace medical advice. Treatment selection, risks, and expected results vary by patient and skin type.*