Used in topical treatments for skin infections, eye drops for bacterial eye infections, and ear drops for outer ear infections. Commonly found in over-the-counter creams and ointments to prevent infection in minor cuts, burns, and scrapes. Employed in selective cell culture media to control bacterial contamination. Used in veterinary medicine for treating gastrointestinal infections in animals. Sometimes included in wound dressings for its broad-spectrum antibacterial activity. Often combined with corticosteroids to reduce inflammation. Not typically used systemically due to risk of nephrotoxicity and ototoxicity if absorbed excessively.