A patient comes in to see the doctor because he is complaining of pruritus and facial swelling and does not know the reason why.He states that he has been using all of his usual medications and has also been using OTC benzocaine on a regular basis for the last 2 to 3 weeks for insect bites.Where do you focus your attention as to the probable cause of his symptoms?
A) Hypersensitivity reaction to PABA
B) Severe drug-produced vasoconstriction
C) Hypersensitivity reaction to epinephrine
D) None of these are correct.
Correct Answer:
Verified
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