Intralesional Injection of Metronidazole for the Management of Cutaneous Leishmaniasis

"Intralesional metronidazole (5 mg/ml, 100 ml, Flagyl®, Sanofi, France) will be injected into each lesion based on its size (5 mg/cm2). The infiltration of intralesional dose will be given once weekly for up to 6 weeks. Treatment will be stopped in patients cured before 6 weeks of treatment, and patients were only asked to come for lesion assessment. A fine insulin needle will be used to infiltrate the lesion.~The lesion will be thoroughly infiltrated with the drug solution until the base will be completely blanched. Depending on the lesion size, the amount of solution required ranged from 0.2 to 4.0 ml per lesion. No local anesthesia will be added. The solutions will be injected intralesionally and not subcutaneously."