Why, when my leg/arm/any limb “goes to sleep” does it hurt once the feeling starts coming back to, but if I am given a numbing agent, it doesn’t hurt when the feeling comes back?

Question

So, when you fall asleep leaning on your arm and roll over, it starts to hurt as the feeling comes back. But if you go to the dentist and they numb your mouth, it doesn’t hurt once that starts coming back?

In: Biology

Answer 1

Uh…. Do others not have pain when the numbing wears off from dental work?? I feel a pins and needles adjacent, very uncomfortable feeling for awhile until it’s gone. It’s the worst part of getting dental work for me