The present invention provides an antimicrobial composition for use in the prevention of a surgical site or catheter site infection, wherein the antimicrobial composition is to be applied prior to surgery or catheterization; and wherein the antimicrobial composition comprises: a) a C 2 -C 5 lower alcohol present in an amount of at least 35 wt-%; b) a hydrophobic polymer soluble in the lower alcohol; c) a cationic antimicrobial agent; and d) an emollient ester selected from the group consisting of diesters of bibasic acids, triesters of citric acid, diesters of diols, triesters of triols, and combinations thereof; wherein the antimicrobial composition is free of surfactants with an HLB greater than 6; and wherein the antimicrobial composition is essentially free of hydrophilic polymers.