Canker-X Pain Relief Gel provides fast pain relief that lasts for hours and promotes healing for many different kinds of mouth sores. It is a maximum strength over-the-counter canker and mouth sore pain relief gel. Canker-X is made with polyvinylpyrrolidone, a micro-thin coating that promotes healing and relieves pain, as well as sodium hyaluronate to hydrate the sore and aloe vera to soothe it. In addition to canker sores, Canker-X relieves pains from other mouth sores, as well as cheek bites and abrasion from braces or denture irritation. Canker-X won’t result in stinging or burning. Apply one to two drops of Canker-X to the canker or mouth sore as often as needed and try to avoid touching the coating with your tongue or eating or drinking for one hour to boost effectiveness.