Nonpigmenting Fixed Drug Eruption due to Codeine / 대한피부과학회지

Fixed drug eruption is a distinctive and clinically recognizable entity that is characterized by well-demarcated erythematous plaques recurring in exactly the same sites as on previous occasions. Unlike the pigmenting form of fixed drug eruption, nonpigmenting fixed drug eruption leaves no pigmentation when it resolves. We now report the case of a 44-year-old man who presented with diffuse ill-defined erythematous patches on both hands, feet and lower legs with a burning sensation, which is considered an atypical manifestation for fixed drug eruption. The patient had a history of similar skin lesions developing after medications on the corresponding regions. The patch test with suspected drugs showed negative reactions on both lesions and unaffected sites. The lesions were reproduced on the oral provocation test with codeine and resolved without pigmentation. The patient was diagnosed with nonpigmenting fixed drug eruption due to codeine.

Nonpigmenting Fixed Drug Eruption to Etodolac / 대한피부과학회지

Nonpigmenting fixed drug eruption is a form of fixed drug eruption which heals without pigmentation. To leave no traces makes the diagnosis difficult. A 37-year-old man pressented the erythematous patches on both wrists and the left thigh. Several hours before the eruption, he had taken oral drugs for the treatment of osteomyelitis. He had had the same eruptions which were diagnosed as an allergic contact dermatitis, 8 months ago. The patch tests with medicated drugs were negative, but oral provocation with etodolac brought the same eruptions.