An anesthetic is a medicine that helps block pain. It may help a person relax, become sleepy or forgetful, and/or become unconscious for surgery.
Anesthesia specialists use these medicines and close monitoring to help keep people safe and comfortable during surgery and other medical procedures.
There are three main types:
Some topical anesthetics are over-the-counter medicines. These medicines can be used as home treatment for minor injuries.
WebMD Medical Reference from Healthwise