Review (5/5): These Are Refills, buy the puffer bottle too
You need to buy one or more of the puffer bottles which will have the same powder in them, then these are refills for those bottles. This has been a life changer for me over the past 10+ years. The American remedies of cankersores just calm the pain a bit and allow it to fester into a cankersorous. Watermelon frost will CURE the cankersore. If you get to it right away, and why wouldn't you, it will heal QUICK. Just be generous with the amount and frequency. I have no idea why it says breath freshner, because you would have to be one rank individual for this to be an improvement. Buy it, a gazillion stars.