what is the best medication for severe allergies?
['Over-the-counter:Cetirizine (Zyrtec), fexofenadine (Allegra), levocetirizine (Xyzal), and loratadine (Claritin, Alavert) are taken by mouth. ... ', 'Prescription: Desloratadine (Clarinex) is a medication taken by mouth.']