I get frequent canker sores. Canker Covers work best for me after brushing my teeth, flossing, and rinsing with hydrogen peroxide before going to bed. If I put on the cover the first day I notice the sore, many times it is gone the next day. Just like you would clean and disinfect a cut or scrape before applying medicine and a bandage, that's how I use Canker Covers. Other products may make the sore feel better temporarily, but this one makes the sore go away faster.
Great product. Only thing that cures my canker sores and makes them go away sooner. Be sure to have a clean mouth before applying, just like you would a bandage.