Antibiotic therapy is the use of antibiotics to treat bacterial infections in humans and animals. Antibiotics are medications that inhibit the growth or kill bacteria, helping the body to fight off infections. Antibiotic therapy is a critical aspect of modern medicine as it has significantly reduced the morbidity and mortality associated with bacterial infections. However, overuse and misuse of antibiotics have led to the development of antibiotic-resistant bacteria, posing a serious threat to public health. Researchers are constantly studying new antibiotics, optimizing existing ones, and developing strategies to reduce antibiotic resistance in order to improve the effectiveness of antibiotic therapy.