Ask the dentist what type of local anesthetics they are using, then avoid that type of anesthetics. Be sure it is the local anesthetic and not the epinephrine found in most local anesthetics or the latex gloves worn by most dentists that can also produce a skin allergic reaction. You may also want to have your physician or dentist do test to determine what types of local anesthetics you are or are not allergic to.
Make a list of these and be sure any physician or dentist administering local anesthetic uses only types that you are not allergic to. Don't be afraid to communicate with your dentist about these problems. More.
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