ABSTRACT
Contact dermatitis is the most common OSD, but contact urticaria, skin cancer, and infections may also be caused by occupational exposures.
Occupational contact urticaria (OCU) is an urticarial response caused by a type I allergic or nonimmunologic response to a workplace agent. Occupational contact dermatitis (OCD) is an eczematous eruption caused by irritation or a type IV allergic response to a workplace agent. The majority of cases of OCD are irritant in nature; often quoted figures suggest that approximately 20-25% of OCD is allergic in nature.
