How Does Photopatch Testing Differ from Patch Testing?
While both photopatch and traditional patch testing involve applying substances to the skin, they serve different purposes. Patch testing identifies substances that cause contact dermatitis without the involvement of light, whereas photopatch testing specifically assesses the role of light in triggering reactions. Both tests are valuable in diagnosing skin allergies, but photopatch testing is unique in its focus on photosensitivity.
