Colgate Peroxyl mouth sore rinse helps cleanse and promote healing of minor oral irritations. Peroxyl’s oxygenating action helps remove oral debris to facilitate healing of oral sores, irritations and mouth burns. Peroxyl also soothes minor gum inflammation from dental procedures, dentures and orthodontic appliances. This great-tasting antiseptic mouthwash is also an alcohol-free mouthwash so there's no burning sensation.