High doses of antibiotics are a common treatment for infections, but they can also lead to healthcare-associated infections (HAIs). These infections can be serious and life-threatening, especially for patients with conditions that compromise their immune system. Common HAIs include central line-associated bloodstream infections, catheter-associated urinary tract infections, and respiratory infections. Patients with compromised immune systems, such as those undergoing chemotherapy or taking corticosteroids, are more susceptible to HAIs. Additionally, taking antibiotics too often or for the wrong reasons can lead to bacterial resistance, making infections difficult to treat. This is a significant problem in healthcare settings, where frequent use of antibiotics can contribute to the spread of resistant bacteria like C. difficile. As a result, it is important for healthcare providers to carefully manage and monitor antibiotic use to avoid these types of infections.