Local anesthesia is a method of delivering pain control medicine to the specific area. It can be done by both ways firstly by injection or secondly by rubbing into the skin to numb an area and its surrounding tissues. It does not make a person unconscious or sleep rather it is helpful in allowing patients to undergo surgical and dental procedures with less pain and distress. It is safer than general anesthesia. In few cases anaesthetist combines both general and local anesthesia techniques. They are easy to administer and readily available too. These local anesthetics have been undergoing developments from many centuries. It is generally given to the person when they are awake.
There are many advantages and disadvantages of local anesthesia. We will discuss them one by one.
This type of anesthesia avoids few risk and unpleasantness associated with other forms of anesthesia like vomiting and nausea. It is associated with less loss of blood. The anesthetic action extends for longer time than required and that provides pain relief for several hours after the surgery. In local anesthesia recovery is fast, patient returns to normal eating, walking and other activities much faster than local anesthesia.
There are some side effects of the local anesthesia like some kind of allergy or redness in the skin. , CNS toxicity which can result in dizziness, visual disturbance, generalised convulsions, tinnitus and eventual coma. Anaphylaxis may also occur. Haemodynamic instability may occur if cardiovascular toxicity occurs. Some other side effects that occur in spinal anesthesia are