title: Nonpigmenting fixed drug eruption due to pseudoephedrine.
abstract: BACKGROUND
  The nonpigmenting fixed drug eruption is a distinctive drug reaction characterized by large, tender and symmetric erythematous plaques that disappear with no residual pigmentation.
  
  
  METHODS
  A case of a non-pigmenting fixed drug eruption due to pseudoephedrine is reported.
  
  
  RESULTS
  The reappearance of typical lesions at the same sites after oral challenge with 60 mg pseudoephedrine together with the absence of pigmentation confirm the diagnosis.
  
  
  CONCLUSIONS
  A new case of proven nonpigmenting fixed drug eruption to pseudoephedrine is described.
authors.affiliation: Allergy Unit, Complejo Hospitalario Universitario de Santiago de Compostela (Hospital de Conxo), Spain.
authors.forename: C
authors.initials: C
authors.lastname: Vidal
authors.forename: A
authors.initials: A
authors.lastname: Prieto
authors.forename: C
authors.initials: C
authors.lastname: Pérez-Carral
authors.forename: M
authors.initials: M
authors.lastname: Armisén
mesh_terms: D000328:Adult; D003875:Drug Eruptions / Q000209:etiology*; D004809:Ephedrine / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012220:Rhinitis / Q000188:drug therapy; D013566:Sympathomimetics / Q000009:adverse effects*
chemical_list: D013566:Sympathomimetics; D004809:Ephedrine