To know the principle of fusidic acid ointment to get rid of acne, we must first understand the pathogenesis of acne. The scientific name for acne is acne, a chronic inflammatory disease of the sebaceous glands of hair follicles, which is mainly related to androgens, sebaceous glands and infections such as Propionibacterium acnes. When sebaceous ducts open abnormally, the sebum secreted by the sebaceous glands accumulates in the sebaceous glands, and Propionibacterium acnes and Staphylococcus epidermidis in the sebaceous glands break down the sebum, causing free fatty acids, which further stimulate the sebaceous glands of the hair follicles and lead to inflammation. Fusidic acid ointment is an antibiotic ointment that kills Propionibacterium acnes and Staphylococcus epidermidis. When these bacteria are killed, the sebum will not be broken down further, thus relieving the inflammation of the sebaceous glands.