Given the nature of the symptoms (itching) and starting the new medication, yes, it is possible that it may be a delayed allergic reaction
, but it may also be related to the active shingles
issue. It is not clear to me which medication has been prescribed to you (eg. "nerve
relaxer") and thus, you should contact the prescribing provider, who met you at the onset of symptoms and determine if this medication should be continued.
Dr Brenes-Salazar MD
Mayo Clinic MN