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Procedures such as laceration repair, which at one time required the use of painful infiltrative anesthetics, can now be accomplished safely and comfortably with the use of topical anesthetics. An additional advantage of topical anesthetics in laceration repair is that wound margins are not distorted.
This type of anesthesia is generally used for minor surgeries (e.g., breast biopsies, vasectomies) and to stitch small wounds. It is usually administered by injection, which can be painful. However, the discomfort only lasts for a brief moment, and the anesthesia usually takes effect very quickly.