What to do?
There's not much you can do if you don't wait, but you can do something that can lessen the intensity of it.
An excellent tip if not the best is to control your breathing and wait.
If the attack occurs at home, wetting the face with cold water also works, as does listening to music.
When you go to the doctor, he will certainly suggest a medicine in s.o.s.
It's usually a tranquilizer xanax, victan, etc that you put under your tongue that quickly calms you down.