Oral antibiotics are medications taken by mouth to treat bacterial infections. They work by killing bacteria or inhibiting their growth, helping the body to fight off infections. Common examples include amoxicillin and ciprofloxacin. These medications are often prescribed for conditions like strep throat, urinary tract infections, and skin infections. It is important to take oral antibiotics exactly as prescribed by a healthcare provider. Completing the full course of treatment helps prevent the development of antibiotic-resistant bacteria. Side effects can include nausea, diarrhea, and allergic reactions, so patients should report any unusual symptoms to their doctor.