General anesthesia is a combination of medications that a person breathes through a mask or receives through a catheter in a vein to cause a person to fall asleep. In contrast, regional anesthesia is ...

All current local anesthetics block sensory signals—pain—but they also interrupt motor signals, which can be problematic. For example, too much epidural anesthesia can prevent mothers in labor from ...

Novocaine numbness generally lasts about 15 minutes to an hour, but it depends on the amount and type of anesthetic used. You may be able to reduce post-procedure numbness by requesting a reversal ...