https://orangectdentist.com/dental-local-anesthetic-allergies-methylparaben-and-sulfites/
Dental Local Anesthetic Allergies - Methylparaben and Sulfites
Sep 3, 2022 - You can be allergic to preservatives used in the "novocaine" or local anesthetic at the dentist. These are sulfites and methyparaben.
local anesthetic allergiesdentalmethylparabensulfites