2020 Volume 3 Issue 2 Pages 355-361
Case 1：A 42-year-old man with edematous erythema that developed on his buttocks after 1 week of using a tribenoside-lidocaine ointment to treat external hemorrhoids was examined. Case 2：A 26-year-old woman with edematous erythema that developed on her buttocks 10 days after using a tribenoside-lidocaine ointment to treat external hemorrhoids, in whom the erythema spread to the across her entire body, was examined. Case 3：A 37-year-old woman was examined. She developed erythema on her buttocks after 2 weeks of treating external hemorrhoids using tribenoside-lidocaine ointment, and following continued ointment treatment after presentation, the eruption spread across her entire body. On patch testing, all 3 patients demonstrated allergic positive reactions to the tribenoside-lidocaine ointment and tribenoside. In case 2, we confirmed that the minimal eliciting concentration of tribenoside on patch testing was 0.01%pet.
（日本皮膚免疫アレルギー学会雑誌, 3（2）：355-361, 2020）
