Mupirocin is an antibacterial produced by Pseudomonas fluorescens. It is applied topically as a 2% ointment in a macrogol base, or as a cream containing Mupirocin calcium equivalent to 2% Mupirocin, in the treatment of various bacterial skin infections. These preparations should be applied up to 3 times daily for up to 10 days; treatment should be re-evaluated if there is no response after 3 to 5 days.