Benzocaine More Drug_uses Is It Possible To Become Addicted To Benzocaine? Is It Harmful?

Is it possible to become addicted to benzocaine? Is it harmful? - benzocaine more drug_uses

I have a friend that his overuse Orajel. His tooth hurt for a while, and I Orajel, but now they are using every day, all the time. She loves the feeling of numbness in the mouth. This question sounds stupid, but I'm worried about this? Can benzocaine, the active ingredient in Orajel addictive? And it is dangerous to use it this way? The concentration, I think, is 10%, although I'm not sure.