When Is PUVA Therapy Recommended for Psoriasis?

PUVA uses a light-sensitising medicine followed by measured ultraviolet A exposure. A psoriasis specialist may discuss it when plaques cover areas that are hard to manage with topical treatment, when symptoms keep returning, or when another option is unsuitable. The assessment considers the type and extent of psoriasis, previous therapies, medicines, eye health, liver health and any history of unusual reactions to light. Treatment is adjusted gradually according to the skin response rather than chosen from the diagnosis alone.

Tell the clinic about every medicine, supplement and skin product you use, including anything that increases sensitivity to light. Follow instructions about when to take the sensitising medicine and how to protect your eyes and untreated skin. Keep each appointment so the dose can be reviewed, and use only the moisturisers or prescribed products recommended by the team. Report increasing redness, tenderness, blistering or a rash outside the treated areas.

Seek prompt advice for severe burning, blistering, facial swelling, eye pain or changes in vision after treatment. Contact your dermatologist if psoriasis suddenly becomes much more widespread, develops pus-filled spots, or is accompanied by fever or feeling unwell. A rapidly painful, red or peeling skin reaction needs assessment rather than another session without guidance.

Ask why PUVA is being considered, what improvement will be measured, how eye protection works, which medicines could interfere, and what other options are available if your skin does not respond as hoped.