Introduction Severe cutaneous adverse reactions (SCARs) — such as DRESS, AGEP, and SJS/TEN — are among the most serious drug hypersensitivity syndromes.The traditional approach is simple: avoid all suspected drugs indefinitely. But this blanket avoidance often creates real-world problems: This raises an important question:👉 Is it time to reconsider the role of patch testing — and even the Repeated Open Application Test (ROAT) — in managing SCARs? Why ROAT Is Feared in SCARs The Repeated Open Application Test (ROAT) is a simple diagnostic tool in delayed hypersensitivity: Concerns in SCARs:…
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