Does narrowband UVB phototherapy treat prurigo nodularis?

Prurigo nodularis causes intensely itchy, firm nodules that can become thicker and more numerous when scratching continues. Narrowband UVB treats a broader field of skin and may be considered when itch or lesions affect several areas. It may calm inflammatory signals and make scratching easier to control, but it does not instantly flatten every nodule or address an underlying trigger by itself. The clinician may combine phototherapy with medicines, itch-control measures, moisturiser, and strategies that protect nodules from repeated trauma.

Ask the dermatologist to review possible contributors such as dry skin, medicines, nerve irritation, or another skin condition. Attend sessions consistently and describe changes in itch, sleep, and new nodules rather than judging progress only by colour. Keep nails short, moisturise as advised, and use coverings or clothing that reduce unconscious scratching. Tell the clinic about all medicines and creams, especially anything that may increase light sensitivity. Do not increase exposure at home to speed the process.

Seek prompt review if nodules become rapidly larger, very painful, ulcerated, or surrounded by spreading redness. Pus, warmth, fever, or red streaks may indicate infection and need medical assessment. Contact the phototherapy service after a session if you develop marked burning, blistering, or a reaction that does not settle. Urgent care is needed for severe swelling or breathing difficulty.

Would whole-area narrowband UVB suit the distribution of my nodules? What will we use to track itch and sleep? Which other treatments should continue? How should I respond to a nodule that bleeds or looks infected?