Medical dermatology · Light therapy
Phototherapy (Narrowband UVB)
Phototherapy uses controlled narrowband UVB light to calm inflammation and stimulate repigmentation in psoriasis, eczema, vitiligo and chronic itch. Treatment takes minutes, two to three times a week, at specialist dermatology clinics with whole-body or targeted units.
Overview
Phototherapy is a safe, drug-free option for many patients. Whole-body cabins treat widespread disease; handheld and excimer devices target small areas.
At a glance
Schedule
Two to three sessions weekly for several months.
Side effects
Mild redness, dryness; long-term skin ageing risk is monitored.
Find it
Look for whole-body phototherapy in a clinic's equipment list.
Frequently asked questions
Is phototherapy like a tanning bed?
No, it uses a specific medical wavelength with controlled doses.
Is it covered by insurance?
Yes, for medical indications.
Is it safe in pregnancy?
NB-UVB is often considered an option; discuss with your dermatologist.
Related
Choose a specialist
Medical skin conditions need a dermatology specialist
Many Korean “skin clinics” focus on cosmetic procedures and may not treat skin disease. Board-certified dermatologists (피부과 전문의) are trained to diagnose and treat it, and medical dermatology is partly covered by Korea’s National Health Insurance. This page is general information, not medical advice.