Which local anesthetic is used for inflammation of oral mucous membranes?
a. Chlorhexidine (Peridex)
b. 2% viscous lidocaine
c. Nystatin (Mycostatin)
d. Hydrogen peroxide
ANS: B
Two percent viscous lidocaine is used as a topical anesthetic for pain associated with oral inflammation. Care must be taken so that the patient does not accidentally burn himself or herself because the drug anesthetizes the entire mouth and throat. Chlorhexidine, nystatin, and hydrogen peroxide are not local anesthetics.
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