Peroxyl, a hydrogen peroxide antiseptic mouth rinse, will reduce inflammation to your gums and cheeks. Peroxyl helps to prevent infection and decrease irritation that may develop from your braces. Rinse your mouth with two teaspoons of Peroxyl (half a capful) for one minute and then spit it out. You may use Peroxyl up to four times daily following your schedule for brushing: after meals (or after school) and before bed. Just like using peroxide for a scrape on your skin, Peroxyl helps the inside of your mouth heal. Peroxyl can be used for general irritation caused by your braces or for canker sores, cheek bites and other minor temporary injuries to the gums.