How much Peroxide and how much water do you need to make the mixture for a Canker sore?
Answer: I'll tell you what I used on my son's when they were younger that was given me by a Doctor. It burns for a few seconds, but it kills the ulcers.You can get some white Iodine, found at your pharmacy or Wal-Marts. Take a Q-tip, wet it with the Iodine, and dab it directly on the ulcer or canker sore. Like I said it will burn some but no more than you can stand, and it will kill the sores. Dab them two to three times a day. Should be completely gone the 3rd day. You can also take some Mallox and take a gulp of it and swish it around inside your mouth. It coats the sores and they don't hurt as much. Best of luck to you young lady.