Overview Bonjela Adult Oral Pain Relief Gel provides effective relief from the pain, discomfort and inflammation caused by common mouth ulcers, cold sores, dentures and sore spots, as well as mouth ulcers and sore spots due to orthodontic devices. It is formulated to help fight minor mouth infection and aid the healing process. Details Bonjela Adult is a clear, almost colourless gel which provides effective relief from the pain, discomfort and inflammation caused by common mouth ulcers, cold sores, dentures and sore spots, as well as mouth ulcers and sore spots due to orthodontic devices. It is formulated to help fight minor mouth infection and aid the healing process. Bonjela Adult contains cetalkonium chloride, an antiseptic which helps to fight infections and choline salicylate, for relief from pain and inflammation.