“…This is the first case report in which the diagnosis of AGEP caused by ibuprofen has been confirmed by positive patch test results, suggesting a type IV T cell‐mediated pathogenesis. In the published case reports, the diagnosis was made clinically, histologically, or on the basis of a basophil activation test . The authors claimed that patch testing may trigger the original rash, but we found only a localized rash and pustulosis in the area of direct contact with ibuprofen.…”