How long before I see a difference? Day, week, month?

22 Jan 2011

You should see the difference in a day, after taking Xyzal (levocetirizine).

Xyzal (levocetirizine) is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Xyzal works by blocking the actions of histamine.

Xyzal is used to treat symptoms of year-round (perennial) allergies in adults and children who are at least 6 months old. Xyzal is also used to treat symptoms of seasonal allergies in adults and children who are at least 2 years old.

http://www.drugs.com/xyzal.html

22 Jan 2011

you said you are undergoing allergy therapy is this using the xyzal or are you doing like I did used something like that and was given allergie testing and injections? hope this helps you please take care