Exevate Mf Ointment 20g contains Mometasone 0.1% w/w, and Fusidic Acid, 2% w/w. As a result, it treats skin infections. Mometasone is a steroid medicine. Therefore, it blocks the production of certain chemical messengers (prostaglandins) that make the skin red, swollen, and itchy. Fusidic Acid is an antibiotic. It stops bacterial growth by preventing the synthesis of essential proteins required by bacteria to carry out vital functions.