Complete this free checklist to ensure your personal or commercial customer has the most comprehensive builders risk coverage, including: 1  Policy terms. 2  Standard and optional coverage and limits. 3  Additional resources and services for insureds.
Some people feel that 3% is a bit strong to use as a mouthwash. You can try 3%, or water it down with some water. (Some 3% hydrogen peroxide with an equal amount of water added will give you 1.5% hydrogen peroxide.) Using hydrogen peroxide as mouthwash will kill bacteria and viruses in your mouth. However, it takes time for hydrogen peroxide to work, so this is not going to remove all the bacteria and viruses in your mouth â it will just lessen them. Using hydrogen peroxide as mouthwash can taste a bit weird.
1 Hydrogen peroxide is an antiseptic that will reduce the amount of bacteria in your mouth and help the canker sore heal. 2  The canker sore should go away in about 2-3 days if you do it twice a day. Unlike cold sores, canker sores or mouth ulcers are not contagious, kissing someone with a canker sore will not harm your partner but may still be uncomfortable for you. 2  Cold sores are different from canker sores â they form on the lips or outside the mouth.