Radiation has been used to treat cutaneous conditions since ancient times.
Despite all the recent advances in the field of dermatological therapy that have taken
place in the last years, phototherapy and photochemotherapy still represent a useful
alternative to control prevalent dermatoses such as psoriasis and atopic dermatitis.
Moreover, it is a useful tool to manage less frequent skin diseases like cutaneous T-cell
lymphomas. Classical phototherapeutic modalities (broadband UVB, PUVA, bath-
PUVA, etc.), its indications and side effects are revised in this chapter, as well as
relatively new options such as narrowband UVB therapy and UVA-1.
Keywords: Phototherapy, analytical, diagnostic and therapeutical techniques and
equipment category, ultraviolet therapy, PUVA therapy, ultraviolet rays, skin and
connective tissue diseases, skin diseases, skin, dermis, epidermis.
