Hand eczema (also known as hand dermatitis) is a common condition affecting up to 10% of the population. It results from a combination of factors, both internal (e.g. your genetic make-up), and external (e.g. contact with irritants and allergens such as chemicals). The irritant nature of some chemicals means that hand eczema is particularly common in people with jobs involving cleaning, catering, hairdressing, healthcare and mechanical work. It is an inflammatory condition and is not contagious, but it can still have a major effect on people’s work, social lives