Bonjela is a clear gel, which is applied to the inside of the mouth or gums. It contains choline salicylate (a pain killer and anti-inflammatory) which soothes the sore areas in the mouth, and antiseptic called cetalkonium chloride, which kills bacteria and helps prevent infection. Bonjela can be used to relieve pain and reduce inflammation and help fight infection in infant teething, mouth ulcers, cold sores, and sore spots due to dentures in adults and orthodontic devices in children.