My dentist sold me a $40 teeny tiny bottle of solution and gave me a pack of little cotton applicators. He told me to be sure that the bottle is stored standing because it will eat through the plastic cap if left on its side!! Not very reassuring! Anyway, it truly does work like magic. Just as described, you put it directly on the sore for 20 or 30 seconds, rinse and the pain starts to recede immediately. A day or two and the sore is totally gone. My husband uses it with the same results.
I do also think my diet has a great deal to do with cankers, though. Too much peanut butter (more than once every three or four days) will for sure give me one. I recently also switched toothpaste and I have had only one sore since doing so. I think it was aggrevated by my teeth whitening procedure.
Mouth Sore Solution
Mouth Sore Solution is proven effective for treatment of mouth sore and recurrent aphthous ulcer which cures in just a few seconds. It is cheap and available in the Philippine drugstores specifically in Cebu City. I don't know if it is available in other countries. Each bottle contains 4mL solution - Potassium Alum, Sodium Chloride, and Acetic Acid. Directions: Soak a piece of cotton bud into the solution and apply to the affected area. Let it stay for 20 seconds, and then gargle with water. That's it! the pain is gone in just seconds not days or weeks. Though it stings in the process of application but it's worth it than suffering in several days or weeks