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Prolonged benefit following ultraviolet A phototherapy for solar urticaria

1997; Oxford University Press; Volume: 137; Issue: 1 Linguagem: Inglês

10.1046/j.1365-2133.1997.17861873.x

1365-2133

Robert Dawe, J. Ferguson,

Drug-Induced Adverse Reactions

Two patients with severe idiopathic solar urticaria, previously resistant to a variety of therapies including plasma exchange, benefited from springtime courses of ultraviolet A (UVA) monotherapy. Sites which are normally exposed to sunlight were treated, in a cabinet fitted with Philips R-UVA lamps (emitting UVA and visible wavelengths, with peak at 350 nm), twice daily for 2-3 weeks. One patient has been treated in this way for 3, and the other for 2, consecutive years. Repeat monochromator phototesting 3 months after their latest courses of UVA showed a persistent reduction in severity of abnormal photosensitivity. Both patients describe a sustained improvement in their condition lasting over 6 months after treatment.