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Anesthetic Injection

An anesthetic injection is a diagnostic procedure to confirm that the area injected is the cause of your symptoms.

What to expect during the procedure:

  • You may be asked to remove your pants or shirt and you will be given a gown to wear.
  • The exam room is usually dark so the images can be seen clearly on the computer screen.
  • The technician will move a small wand (transducer) over the area to be imaged. A warm, clear gel will be placed between the transducer and the skin to facilitate the transmission of the sound waves into and out of the body.
  • Your skin will be cleaned.
  • You may be given topical anesthetic which will feel very cold.
  • Local anesthetic will be administered under the skin.
  • Local anesthetic will be administered into the area of interest using ultrasound for guidance and confirmation.

What to expect after the procedure:

  • The anesthetic lasts from 1-4 hours after.
  •  It is important for you to determine if your pain has been relieved during the 1-4 hours following the procedure during which anesthetic is active.

What types of activity are allowed after the procedure:

  • If your doctor has given you instructions please follow his or her recommendations.
  • Please do activities which normally cause your symptoms following the procedure.


  • None