allergies
"This medicine has seriously changed my life. Had struggled with allergies and recurrent sinus infections my whole life, but in my early 20s started having idiopathic anaphylactic reaction. I ended up in the ER several times, once with epinephrine. My allergist determined I was allergic to everything...seasonal and indoors. He prescribed Xyzal. I have not had one ER visit or sinus infection in 2 years AND no side effects. I call it my magic pill."