Hard to know: And it could of course be unrelated or be a result of whatever it was that prompted an LP. However, if you had rash/itching on your scalp, it is more likely to be some kind of allergy rather than just a local reaction. So be careful and remember to tell the dentist or doctor next time you need a local anesthetic. They could use another one besides lidocaine. Good luck!
Answered 2/12/2017
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