Home › Blog › Can Vitiligo Be Treated? Excimer Laser, Phototherapy and Grafting Explained

Can Vitiligo Be Treated? Excimer Laser, Phototherapy and Grafting Explained

Vitiligo carries more misinformation than almost any other skin condition in India. It is not contagious, it is not caused by eating the wrong foods together, and it is not untreatable. It is an autoimmune condition in which the body’s own immune cells attack the pigment-producing cells in patches of skin. Modern dermatology can, in most patients, slow or stop that process and bring pigment back — with the honest caveat that some sites respond far better than others and that treatment takes months, not weeks.

The First Question: Active or Stable?

Before any treatment is chosen, the dermatologist establishes whether the vitiligo is active — new patches appearing, existing ones growing, edges blurred — or stable, with no change for a year or more. Active disease needs the immune attack calmed first; stable disease can be repigmented, and stable patches that resist light treatment become candidates for surgery. The pattern matters too: segmental vitiligo, confined to one side of the body, behaves differently from the more common symmetrical type. This assessment, plus a Wood’s lamp examination to reveal patches the eye misses, is the whole of the first visit.

Excimer Laser and NB-UVB Phototherapy

Narrow-band UVB phototherapy is the most evidence-based vitiligo treatment in use worldwide: a specific ultraviolet wavelength delivered in controlled doses that suppresses the immune attack and stimulates the remaining pigment cells to migrate back into the patch. For localised patches, the 308 nm excimer laser delivers the same therapeutic wavelength as a targeted, higher-intensity dose directly onto the lesion, sparing surrounding skin and typically achieving repigmentation in fewer sessions. Clinical studies report response rates of roughly 70–80% for facial vitiligo with excimer laser. Face and neck patches respond best and usually show visible repigmentation within 20 to 30 sessions; patches on the hands, feet and bony areas are the most resistant and need longer courses and realistic expectations. The American Academy of Dermatology’s vitiligo treatment guidance ranks light therapy the same way.

Prescription Creams That Work Alongside

Light treatment is almost always combined with prescription topicals: immune-modulating creams that quieten the local attack, and vitamin D analogue creams that encourage pigment cells to migrate. The combination outperforms either alone. These are prescription medicines chosen for the site and the patient — steroid-containing creams from a pharmacy counter used for months on the face cause their own damage and are a common part of the history we see.

Surgery for Stable, Resistant Patches

When a patch has been stable for at least a year and has not repigmented with light and creams, it can be treated surgically by moving pigment cells into it. Suction blister grafting lifts a thin layer of pigmented skin from a donor site and places it on the prepared patch; melanocyte transplantation separates the pigment cells and applies them as a suspension over a larger area. Both are performed under local anaesthetic on our surgical dermatology service and are followed by phototherapy to spread the new pigment. Surgery on active vitiligo fails, which is why the stability question comes first.

What Treatment Cannot Promise

No treatment guarantees complete repigmentation, and vitiligo can reactivate after years of stability, particularly with stress, injury to the skin or sunburn. What treatment reliably does is stop spread, bring back pigment on responsive sites, and reduce the contrast that makes patches visible. Sun protection matters doubly: unpigmented skin burns, and burned skin can trigger new patches. Camouflage products are a legitimate part of the plan, not a failure of it.

Where to Get Assessed

Vitiligo assessment and management are part of medical dermatology across the Dr. Thaj network. Our Pondicherry clinic runs the fullest excimer and phototherapy programme, drawing patients from Villupuram and Cuddalore; the Thalassery flagship and Kannur clinics assess and treat vitiligo in Kerala. If you are choosing between clinics, how to read reviews before booking explains what to look for in a medical dermatology practice.

Frequently Asked Questions

Is vitiligo curable?

There is no cure, but it is treatable. Modern dermatology can usually stop the spread and bring pigment back on responsive sites, particularly the face and neck. Treatment takes months, results vary by site, and the condition can reactivate, so maintenance matters.

Which treatment works best for vitiligo?

Narrow-band UVB phototherapy and the 308 nm excimer laser are the most evidence-based options, combined with prescription immune-modulating and vitamin D analogue creams. Stable patches that resist light treatment can be grafted surgically.

How many excimer laser sessions are needed?

Face and neck patches usually show visible repigmentation within 20 to 30 sessions, typically two per week. Hands, feet and bony areas are the most resistant and need longer courses. Your dermatologist reviews progress with photographs at set intervals.

Is vitiligo contagious or caused by diet?

No to both. Vitiligo is an autoimmune condition in which the immune system attacks pigment cells. It cannot be passed to anyone and is not caused by food combinations, however widely that belief persists.

When is surgery an option?

Only for patches that have been completely stable for at least a year and have not repigmented with light treatment and creams. Suction blister grafting or melanocyte transplantation moves pigment cells into the patch, followed by phototherapy. Surgery on active vitiligo fails.