Question: will zyrtec dry up mucus?
Answer: When they dry out mucus, they can actually thicken it. Newer antihistamines like loratadine (Claritin, Alavert), fexofenadine (Allegra), cetirizine (Zyrtec), levocetirizine (Xyzal), and desloratadine (Clarinex), may be better options and are less likely to cause drowsiness.