<prompt> PUVA is used for all exceptPsoriasisVitiligoPorphyriaCutaneous T-cell lymphoma  <response>: PUVA is a combination treatment which consists of Psoralens P and then exposing the skin to UVA long wave ultraviolet radiation. PUVA may be used to treat various skin disorders, including: Psoriasis Dermatitis Vitiligo Polymorphic light eruption Cutaneous T-cell lymphoma Porphyria has photosensitivity and PUVA aggravates it. Ref: Harrison 19e pg: 348 