Bacitracin zinc salt is widely used as an antibiotic in both human and veterinary medicine. It is particularly effective against Gram-positive bacteria, making it a common ingredient in topical ointments and creams for treating skin infections, minor cuts, and burns. In veterinary applications, it is often included in animal feed to prevent and treat bacterial infections in livestock. Additionally, it is used in ophthalmology to manage eye infections. Its stability and efficacy in combination with other antibiotics enhance its utility in multi-purpose formulations.