I didn't think it would work, but when I forgot my drops it helped reduce my pain.
The effect of the pen was wonderful, but unfortunately it doesnt last very long. within 24 hours of getting I was very dissapointed when the light started flashing. I mean for the original price required, I believe it should at least last a couple of days.
MY favorite flavor so far is spearmint. These disposables last for a long time in my opinion & they are very simple to access because they barely take up any space. No buttons so I love slipping these into my pockets for on the go!