How a simple change to photodynamic therapy cuts patient pain
US study shows benefits of more immediate light treatment for actinic keratoses
![man's scalp with actinic keratoses](https://www.ausdoc.com.au/wp-content/uploads/2022/08/actinic_keratoses_istock-1009518028-1.jpg)
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.