How a simple change to photodynamic therapy cuts patient pain

US study shows benefits of more immediate light treatment for actinic keratoses
Clare Pain
man's scalp with actinic keratoses

Administering blue light photodynamic therapy for actinic keratoses immediately, rather than waiting the usual hour, is as effective and can “dramatically” reduce patient pain, a small study suggests.

Under current photodynamic therapy regimens, blue light is used an hour after applying a photosensitive drug to patients’ skin.