Why Melasma Is Managed, Not Erased: What to Know Before a Korea Visit

Melasma is better thought of as a skin condition you manage over time than something a single session clears away. Even after it fades with treatment, it often darkens again with sun exposure or hormonal change. DermNet, the New Zealand dermatology reference, describes melasma as chronic and relapsing, and the American Academy of Dermatology (AAD) says treatment usually takes 3 to 12 months to show results, sometimes longer when the melasma has been there for years. That is why a few days in Korea is rarely enough to see where things will land.

Mediport is not a medical provider. This article does not tell you how to diagnose or treat your skin. It covers what is worth knowing before a consultation in Korea, and how to prepare your schedule and the handover once you fly home. What your pigmentation actually is, and which approach suits it, is for the doctor who examines you to decide.

How melasma differs from other brown spots

People tend to call every brown patch on the face "melasma" or just "pigmentation," but dermatologists separate several types. The reason is practical: each type reacts to sunlight differently and comes back in a different way. The table below simplifies how published dermatology references usually describe them. The real call is made in the clinic.

It is common for one face to have two or more of these at once. So the first thing to settle in a consultation is not what to do, but what each of those spots actually is.

Why the depth of the pigment matters

Skin has an outer layer, the epidermis, and a deeper layer beneath it, the dermis. DermNet groups melasma by where the pigment mainly sits: epidermal, dermal, or mixed, with mixed being the most common. It describes epidermal melasma as having a clearer edge and responding better to treatment, and dermal melasma as having blurred edges, a bluish grey-brown tone and a slower response.

For you as a patient, the takeaway is straightforward. Two people with melasma can expect different degrees of change over different lengths of time. Clinics sometimes use a Wood's lamp (a special light) or a dermatoscope to estimate the depth. Asking directly, "Which type does mine look closer to?" makes it much easier to set your schedule and your expectations.

What makes melasma darken again

Melasma is called a management problem because the things that darken it are still part of daily life after treatment ends. The factors that published dermatology sources keep coming back to are:

• Sunlight. Research suggests visible light plays a part, not only UV. DermNet notes that pigmentation can reappear with summer sun even in people who had a good result from treatment.
• Hormonal change. Pregnancy, the contraceptive pill and hormone replacement therapy are listed as triggers.
• Some medications, heavily fragranced cosmetics and thyroid conditions are also mentioned.
• Irritation. Strong irritation can add post-inflammatory hyperpigmentation on top of melasma.

Melasma also tends to run in families, which points to an inherited element. Of all these, sunlight is the one that ties directly to your travel plans. If you have long outdoor sightseeing days planned right after a procedure, or you are heading straight home to a very sunny climate, mention it at the consultation.

Questions to ask at the consultation

How laser toning works and what types exist are covered separately in our guide to pigmentation and melasma laser treatment in Korea. Here we focus on the questions worth asking when you look at melasma as long-term care.

• Which of the spots on my face are melasma, and which are a different kind of pigmentation?
• If it is melasma, does it look closer to the epidermal, dermal or mixed type?
• What can be done on this visit, and what would need to be spread over several sessions?
• How likely is it that irritation makes the pigment darker, and what would you do if that happens?
• If I am given creams or tablets to use at home, can I get them in my country?
• When is the next check, and how would it happen: another visit, a video consultation, or a local clinic?

DermNet notes that lasers and similar procedures are used for melasma but carry a high risk of relapse, and should be used carefully by experienced doctors. That is why we suggest not skipping the fourth question. Once you have heard the explanation, whether to go ahead, and how far, is your decision.

Planning your stay in Korea

Rather than trying to finish everything in a few days, build your melasma trip around what you want to have decided by the time you leave. A common pattern is to get a diagnosis and a plan on the first visit, then decide whether to continue at home or come back to Korea. We explain how that choice is usually made in One Trip or Two: How the Decision Actually Gets Made.

These points in time are only a common pattern. The actual intervals and number of sessions are set by the clinic that treats you.

Who carries on the care after you go home

Most melasma care happens where you live, not in Korea. So there are a few documents to collect before you leave: what type of pigmentation you were diagnosed with, what was done and when, the medications prescribed and how to use them, when the next check should be, and who to contact. With these, a dermatologist at home can pick up where the Korean clinic left off. Ask for prescriptions to be written with the active ingredient names, so you can find the same ingredients locally.

Sun protection is a constant in melasma care. The AAD mentions sunscreens containing zinc oxide, titanium dioxide or iron oxide, and tinted sunscreens, for people with melasma. DermNet advises a broad-spectrum SPF50+ containing iron oxides all year round, along with a broad-brimmed hat. A randomized trial in France found fewer relapses in the group using a tinted sunscreen that also blocked visible light. Even so, which product to use and how to use it should follow the instructions of the clinic that treated you.

What Mediport does

We do not provide medical care. We pass your pre-trip photo consultation to the clinic, work with the interpreter during the consultation so the questions above get asked, and check with you before you fly home that you have documents showing the diagnosis, prescriptions and the next check date. After you return, you can send us progress photos; we forward them to the clinic and relay the reply in your language. Whether to treat, and how, is always decided by the medical provider and by you.