Arsenic is a toxic metal that can cause death following exposure. In an unusual event, seven patients unintentionally applied a 30% arsenic solution to their entire body instead of a benzyl benzoate solution to treat their scabies. Hours later they developed severe skin reactions, including bullae, and were admitted to the hospital with gastrointestinal and cardiovascular disorders. Despite therapeutic interventions, three patients died and the rest were discharged from hospital with neurological sequelae. Toxicological analysis confirmed the presence of arsenic in the solution used by patients.