Bacitracin is widely used as an antibiotic in both human and veterinary medicine. It is primarily applied topically to treat minor skin infections, cuts, and abrasions, often found in ointments and creams. In ophthalmology, it is used in eye ointments to prevent or treat bacterial eye infections. Bacitracin is also included in combination products with other antibiotics to enhance its effectiveness against a broader range of bacteria. In veterinary practice, it is used to treat infections in animals, particularly in livestock. Additionally, bacitracin is sometimes added to animal feed as a growth promoter to improve feed efficiency and overall health. Its ability to inhibit bacterial cell wall synthesis makes it effective against gram-positive bacteria, contributing to its widespread use in infection control.