i must not be a dentist-- i can't tell what it is that means a root canal is needed. At least you didn't get burned in the face, or blistered on the hands!
I had to get a root canal a few months ago. The pain before the root canal is much much worse than the actual process of getting one done...trust me! They numb you so you don't feel anything. The only other uncomfortable part is preparing the tooth for fitting the crown on. They push back your gums with this string and that is more annoying than anything else! Good luck!