Dermatology

Dermatology is the branch of medicine for the skin, hair and nails: it diagnoses and treats conditions that affect them and improves how they look. A dermatologist is a medical doctor, not a cosmetic-only practitioner, who specialises in these conditions (American Academy of Dermatology). If you have a mole that is changing, a new growth that looks unlike the others, or a sore that has not healed within a few weeks, do not wait: see a doctor promptly (NHS; NHS). If symptoms suddenly worsen while you are anywhere, including abroad, such as a rash that is spreading quickly or signs of infection such as spreading redness, heat, pus or a fever, get urgent medical help immediately rather than carrying on with plans. For everything else, this guide walks you through what dermatology covers, how a consultation and any treatment unfold, what it costs you if you wait, and what changes if you get this care in another country.

What dermatology is

A board-certified dermatologist has extensive training, which allows them to accurately diagnose and properly treat more than 3,000 diseases of the skin, hair and nails, as well as cosmetic concerns (American Academy of Dermatology). Dermatologists are also expert skin surgeons, so the same person who treats your psoriasis can remove a suspicious spot (American Academy of Dermatology).

That range is the point of this page: dermatology spans needed medical care and optional cosmetic treatment. On the medical side, common conditions include acne, eczema (atopic dermatitis), psoriasis, contact allergies, infections of the skin and hair, and skin cancers and other moles and growths (American Academy of Dermatology). Two of the long-term conditions are worth knowing, because neither can be cured, only managed: psoriasis causes itchy, painful patches of dry, flaky skin, and atopic eczema is an itchy condition that affects people of all ages but most often starts in young children (NHS).

On the cosmetic side, dermatology includes a family of optional procedures, each a separate service on MedicalTourism.Review:

• Botox injections relax the muscles beneath wrinkles to soften them.
• Chemical peels apply an acid solution that removes the top layers of skin so the surface renews.
• Cosmetic fillers are injected under the skin to restore lost volume and soften lines.
• Dermaplaning uses a blunt scalpel to shave away dead skin and fine facial hair.
• Laser resurfacing uses targeted light energy to remove damaged layers, and as the skin heals it makes new collagen.
• Microdermabrasion exfoliates the skin with fine grain and vacuum suction to smooth the top layer.

A dermatology visit often touches neighbouring services too. A doubtful spot may lead to a biopsy read in the lab, which is the role of pathology; skin tests and allergy work-up fall under diagnostics; the first contact and every follow-up is a consultation or check-up; and a skin cancer that needs cutting out is a form of surgery.

How dermatology works

The pathway starts with a history and an examination. Your doctor asks what you notice, how long it has been going on and what has been tried, then looks at the affected skin, and often at your hair and nails too, because the three grow from the same tissue. If you are travelling abroad for a planned procedure, you should expect the same sequence: consultation first, treatment second.

When the concern is skin cancer or a changing mole, the dermatologist carries out a full-body skin examination, checking the whole surface for anything suspicious (American Academy of Dermatology). If a spot could be skin cancer, you will need a skin biopsy, in which a small part of the spot is removed and sent to a lab to be examined under a microscope; this is the only way to diagnose skin cancer (American Academy of Dermatology). For a non-melanoma excision biopsy, results usually come back within two to four weeks, and for a melanoma biopsy about two weeks, sometimes longer (NHS; NHS).

A patch test answers a different question, whether you are allergic to something touching your skin, such as a cosmetic ingredient or a metal. The patches are applied to your skin, removed after two days and your skin assessed, then examined again a further two days later, because most allergic reactions take that long to develop (NHS).

Diagnosis leads to a treatment plan matched to the condition. For psoriasis, for example, the main treatments are vitamin D creams, lotions, ointments and gels, moisturising creams and washes (emollients), steroid creams, and other treatments for skin or scalp such as coal tar; if the psoriasis is more severe, there are other treatments such as light therapy and medicines (NHS). For cosmetic work, the plan is the procedure itself: a chemical peel applies an acid solution to help the body produce more collagen and elastin, in strengths ranging from mild to strong and usually across several sessions; laser resurfacing removes damaged layers and as the skin heals it produces collagen and elastin that can diminish scars; microdermabrasion gently exfoliates the top layer without cutting; and fillers restore lost fullness to the face, lips and hands, always after a consultation about what results you want (American Academy of Dermatology; American Academy of Dermatology).

Who it is for, and when not to wait

Dermatology is for two very different visitors. One has a medical problem: a rash that will not settle, acne that is scarring, eczema or psoriasis that manages poorly, or a spot that may be cancer. The other has a cosmetic goal - fewer wrinkles, an even tone, smoother skin - and knows it is a choice they can make or leave: not having it is a real option, so the decision is theirs. Both are served by the same doctors, but only one side carries urgency, and this is where the cost of waiting sits.

Waiting is cheap until it is not. A changing mole may be melanoma, and melanoma caught early is highly curable: the five-year survival is roughly about 95% for stage 1 melanomas and generally 100% for stage 0 melanomas, while later-stage diagnosis generally means a much poorer prognosis (The Royal Marsden). Melanoma, if left untreated, can spread through the lymph and blood system to other parts of the body (Cambridgeshire and Peterborough NHS Foundation Trust). Advanced melanoma can reach the lymph nodes and internal organs, which can result in death (American Academy of Dermatology). Squamous cell carcinoma, a non-melanoma cancer, also has the potential to spread to other parts of the body, while finding non-melanoma skin cancer early can mean it is easier to treat (Cambridgeshire and Peterborough NHS Foundation Trust; NHS). Even basal cell carcinoma, the most common skin cancer in the UK and usually slow-growing, can bleed, crust and ulcerate if left untreated (Cambridgeshire and Peterborough NHS Foundation Trust).

The same logic applies to everyday conditions. Any type of acne spot can lead to scarring, more often when nodules and cysts burst and damage nearby skin, and if you have a more severe case of acne and leave it untreated, it will be more likely that you get lifelong scarring (NHS inform; Wycombe Combined NHS Trust). Eczema cannot be cured but is manageable, and skin that has blistered, crusted, is leaking fluid or has spots filled with pus needs an urgent appointment because it may be infected (NHS).

So what should move you from "watch it" to "see a doctor now"? See a GP or dermatologist if you have a mole that has changed size, shape or colour, or a new or unusual mark on your skin that has not gone away after a few weeks (NHS). A sore that hurts, itches, bleeds, crusts or scabs for more than four weeks deserves a check too (NHS). A practical self-check is the ABCDE rule, a spot with an irregular shape, an uneven or poorly defined border, a mix of colours, a size larger than 6 mm (bigger than a pencil eraser), or that is evolving, should be seen by a dermatologist (American Academy of Dermatology; NHS). Regular self-examination helps find skin cancer early, when it is most treatable, and how often you should see a dermatologist depends on your own risk, such as many moles, a family history of skin cancer, or a lifetime of strong sun exposure (American Academy of Dermatology).

For the cosmetic side, the honest summary is that it is a choice, not a medical need, and not having it is a real option. The decision is yours to make on appearance and budget, and you should simply ask yourself what you would lose by waiting.

How to prepare

Each item on your checklist has a purpose. Note the spot itself and its history: when you first noticed it, and what has changed since. A mole that "has changed" is a medical fact your doctor needs, and photographing it at the start of noticing can help. Bring copies of your medical records, including results of any earlier skin tests or biopsies, and a list of current and recent treatments: before treating acne scars, for example, you are asked to tell your dermatologist about all acne treatments you are using or have used within the last two years (American Academy of Dermatology). If a patch test is planned, avoid applying makeup, scented lotions or new products to the test area beforehand, so nothing adds its own reaction to the reading. And if your plan involves sun-exposed skin, bring evidence of how you protect it, because non-melanoma skin cancer most often appears on sun-exposed skin (NHS).

Writing down your questions in advance helps you ask them in the room. You can say these exact words:

• "Is this spot something I need a biopsy for, or can it be watched safely?" (American Academy of Dermatology)
• "What are the common and the rare risks of this treatment, and what should make me call you afterwards?" (American Society of Plastic Surgeons)
• "Who exactly will perform the procedure, and what are their qualifications for it?" (American Academy of Dermatology)
• "What is the realistic recovery, and what changes if I fly home soon after?" (CDC)

What to expect, risks and recovery

Dermatology's benefits are concrete: a rash that settles, acne brought under control, eczema or psoriasis managed so that daily life is easier, a dangerous spot removed before it spreads, and, for cosmetic work, the appearance goals the person asking for it wanted. The risks are smaller and more familiar than for major surgery, but they are real.

Common and usually temporary: skin irritation from creams and peels; after microdermabrasion, mild inflammation that disappears in a few hours and flaky skin for three or four days; after laser treatment, crusting or temporary darkening that tends to fade quickly (American Academy of Dermatology). After a peel you should expect the skin to peel over days, and after a resurfacing laser, redness lasting days to weeks. These effects are the procedure working, not a sign anything has gone wrong.

Less common and more serious - infection, bleeding and scarring - are uncommon, and after any treatment your doctor will tell you what to watch for (American Society of Plastic Surgeons). Injectable fillers usually bring local, temporary effects, swelling, pain, bruising, itching, rash and occasionally infection, and severe complications from dermal fillers are uncommon (American Society of Plastic Surgeons). The rare serious one deserves its name: the filler may accidentally be injected into a blood vessel instead of under the skin, blocking blood flow, which can cause tissue death (necrosis), vision abnormalities including blindness, or stroke, complications that can be serious and permanent even though the chance is low (US Food and Drug Administration; American Society of Plastic Surgeons). Botox can rarely spread its effect to nearby muscles, causing a drooping eyelid, dry eye, blurred vision or facial weakness; although rare, problems with swallowing, speaking or breathing after treatment should be reported urgently (Hull University Teaching NHS Foundation Trust).

Recovery depends on the procedure. Topical treatments may irritate for days. A peel peels over days to a week. A laser resurfaces with redness for days to weeks. Injectable fillers usually cause local effects such as swelling and bruising shortly after the injection, and many resolve in a few days to weeks (US Food and Drug Administration); rare serious complications are uncommon (American Society of Plastic Surgeons), which is why the questions in the preparation section matter.

Finding dermatology abroad on MTR

People travel for dermatology for the same reasons as for any care: long home waits, high costs, and cosmetic procedures that cost far less abroad. If you do, the practical protection is the same at every step of the journey.

Before anything, see a travel medicine clinician or your healthcare provider at least four to six weeks before the trip, to discuss your health status and the risks the procedure and travel add together (CDC). Obtain international travel health insurance that covers medical evacuation back home (CDC). Bring copies of your medical records, including results of any lab tests related to your condition, and tell the medical staff at your destination about any allergies you have (CDC). Arrange follow-up care where you live before you leave, because follow-up care for medical complications can be expensive and might not be covered by your health insurance (CDC).

Who performs the treatment matters more than the package price, especially for injectables. Botox injections are a medical procedure and should only be performed in a medical office by board-certified dermatologists or an appropriately trained non-physician clinician, under the direct on-site supervision of a board-certified dermatologist (American Academy of Dermatology). Counterfeit injectables are a documented problem, potentially resulting in severe complications such as visual impairment, blindness, infection or even stroke, which is exactly why you need to carefully understand who you are selecting to perform the procedure (American Academy of Dermatology). Ask how long you should wait between the procedure and your flight home, get the aftercare plan in writing in a language you read, and know in advance who handles a complication once you are back.

Compare providers on MedicalTourism.Review's dermatology directory, looking at qualifications for the specific treatment, whether that treatment is actually offered, English-language records, a written aftercare plan and home follow-up, not at the lowest quote. If you want more context on travelling for care, read our guides on top medical tourism destinations and on navigating U.S. medical tourism.

This week, if you have a mole that has changed or a sore that will not heal, book a doctor's appointment now; if not, do your self-examination and write down your questions before your next consultation.

Medical disclaimer: This information is for general educational purposes and is not medical advice. Always consult a qualified healthcare professional about your individual situation.

Reviewed against authoritative medical sources (American Academy of Dermatology; NHS England; NHS inform, NHS Scotland; The Royal Marsden NHS Foundation Trust; Cambridgeshire and Peterborough NHS Foundation Trust; Wycombe Combined NHS Trust; Hull University Teaching Hospitals NHS Foundation Trust; American Society of Plastic Surgeons; the US Food and Drug Administration; the US Centers for Disease Control and Prevention).

Last reviewed: 4 November 2026