Scabies — persistent itch after permethrin
HIGH-YIELD
Appears 5×
Teaching point
Post-scabetic itch persists 2-4 weeks AFTER successful treatment -> reassure + topical steroid/antihistamine, do NOT reflexively re-treat. True failure / crusted / outbreak / institutional -> oral ivermectin +/- repeat permethrin; treat ALL household/close contacts.
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