👉 Antibiotic is a type of chemical substance that is used to treat bacterial infections. Antibiotics work by interfering with the cell walls of bacteria, which prevents them from multiplying and causing damage to other parts of the body. In simple terms, an antibiotic works by killing or reducing the number of bacteria in a person's body. This helps prevent further infection and can be very effective against certain types of bacterial infections like pneumonia or urinary tract infections. Antibiotics are used as part of medical treatment plans for