Betnesol Eye, Ear & Nose Drops 7.5ml contain the active ingredient betamethasone sodium phosphate, which belongs to a group of medicines called corticosteroids. These drops are used to treat inflammation and swelling in the eyes, ears, and nose. They are used to treat conditions such as allergic conjunctivitis, iritis, scleritis, uveitis, otitis externa, and rhinitis. Betnesol Eye, Ear & Nose Drops are usually prescribed by a doctor or healthcare professional and should be used as directed.