Chronic actinic dermatitis
, also known as photosensitivity
dermatitis/actinic reticuloid syndrome (PD/AR), is a condition where a subject's skin becomes inflamed due to a reaction to sunlight or artificial light. CAD patients often suffer from other related conditions of the skin that results in dermatitis in response to a variety of stimulus (e.g., flowers, sunscreens, cosmetics, etc.).