And the reason is Antibiotics, while effective for targeting and treating bacterial infections within the body, are typically not used as primary agents for cleaning or protecting external wounds. When applied to the surface of a wound, they are not generally used to ward off potential bacterial infection. Instead, antiseptics such as hydrogen peroxide, povidone-iodine (Betadine), or rubbing alcohol (isopropyl alcohol) are commonly utilized to clean and protect wounds, specifically to prevent bacterial growth and reduce the risk of infection. These substances are intended for external use and are designed to be applied directly to the skin or wounds for their antiseptic properties, rather than being ingested or administered internally like antibiotics. Therefore, in the context of protecting wounds from bacteria, the appropriate substance is an antiseptic, not an antibiotic.