If you cannot use Zyrtec, you can try another second-generation antihistamine like Allegra (fexofenadine) or Claritin (loratadine). However, these OTC drugs have similar mechanisms of action to ...

Then from there, you can add on an allergy pill like Zyrtec, Claritin or Allegra," suggested Dr. Troy Baker, allergist at Kaiser Permanente Mid-Atlantic. “So, all three you’re suggesting?” ...