Abstract
The number of patients who undergo Helicobacter pylori (HP) eradication therapy has been increasing since it became covered by insurance in Japan. As such, an increasing number of patients develop drug eruption as a result of HP eradication therapy. In the present study, we describe the clinical course of 28 patients who were treated at our hospital for drug eruption following HP eradication therapy between April 2008 and March 2016. The majority of the patients were women (21 women, 7 men). The average length of time from the start of treatment to the onset of eruption was 7.6 days. A drug-induced lymphocyte stimulation test (DLST) was performed in 10 patients. Amoxicillin was the most common cause of eruption, with 6 patients testing positive. Patients who were considered likely to have developed sensitivity prior to the treatment required the systemic administration of steroids. On the other hand, symptoms were relieved with topical steroids in some of the patients who were considered likely to have developed sensitivity during the course of treatment. Since penicillin antibiotics have long been used, some patients may have become sensitized without being aware of this. Our findings highlight the need for the careful management of patients developing sensitivity prior to treatment as they require the systemic administration of steroids.
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