Forty-eight patients (48) with Old World cutaneous leishmaniasis will be randomly allocated to WR279396 treatment once a day for 20 days with an optimized polyurethane dressing (occlusion) (24 patients), or without occlusion (24 patients). All patients will be rescued with the standard of care accepted in Tunisia, if the patient is not cured. The active ingredients of WR279396 are two aminoglycosides - paromomycin sulphate (15%) and gentamicin sulphate (0.5%) - in a base (AQIC).