Excimer Light and Topical Steroid in Treatment of Alopecia Areata

Alopecia areata is a polygenic autoimmune disease causing hair loss, particularly during the anagen phase of hair growth This condition has a lifetime risk of about 2.1% of the world population and the cumulative incidence seems to rise linearly with age . Patchy non scarring hair loss on the scalp is the most common clinical presentation, although it can also occur elsewhere . In addition to patchy Alopecia Areata , a more severe form, alopecia totalis , presents with diffuse hair loss across the scalp. In the most severe form, alopecia universalis , hair loss occurs on all areas of the body, including the beard, eyelashes, and extremities .