Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Local Anesthesia
Overview & Description
Anesthesia means a loss of feeling or inability to feel pain. Local anesthesia is a method of pain prevention in a small area of the body. The medication used is commonly called numbing medication.
Who is a candidate for the procedure?
Anyone who undergoes a painful procedure may be a candidate for local anesthesia. This type of anesthesia is usually used for minor procedures. Examples are getting sutures for a cut or having a tooth pulled. Local anesthesia can also be used for minor surgery, such as a hernia repair.
How is the procedure performed?
Local numbing medication is injected into the skin or other surface at the site of the procedure. The injection is usually near the surface, but may be deeper in some cases.
The site of the procedure is first cleaned with an antibacterial cleanser. The medication used to numb the area is then injected using a very small needle. The medication may cause a stinging or burning sensation at first. This discomfort lasts for just a few seconds.
It takes a few minutes for the medication to have its full effect. The person should be unable to feel pain in the treated area. A pressure sensation may be felt when the area is cut or poked with needles. But pain should be absent. If pain is felt, the person should tell the healthcare provider. More medication can be injected to control pain.
If a person is anxious, sedative medication can be given. The sedative may be a pill or may be given through an intravenous line (IV) inserted into the vein of the arm or hand. This medication can help the person relax. The numbing medication generally wears off within an hour of the procedure.