Tea tree oil is said to be a natural antiseptic/antibacterial:
Tea Tree is said to help heal cuts and bruises and is effective against more serious infections, According to the Wisconsin State Division of Public Health Guidelines for Clinical Management and Control of Transmission of Community-Associated Methicillin-Resistant Staphylococcus Aureus, or CA-MRSA, daily bathing or showering with tea tree oil body products and shampoo is an effective method of decolonizing a person carrying CA-MRSA. The Wisconsin Division of Public Health further notes that treatment with tea tree oil products has the benefit of being less harsh on patients’ skin than chemically-based antibacterial agents.