The principles and drugs used in general anesthesia and local anesthesia are different. What is different for patients is that general anesthesia makes people unconscious; But local anesthesia only paralyzes the affected part, without feeling, and people are always awake and conscious.

People upstairs who don't understand talk nonsense. Anesthesia is done by a doctor, and general anesthesia must be done by an anesthesiologist. Relatively speaking, general anesthesia is safer and more reliable.