T.F.
We have allergies that act up a lot because we live on a wooded lot and little did we know, we had allergy issues with cedar elm which is the majority of very nice trees on our lot and in the 85 acre park behind us. We refuse to leave this favorite home we built with super privacy and lots of wildlife.
After having sinus infections each fall and each spring, my daughter's pedi recommended the 24 hr Zyrtec EVERYDAY... ALL YEAR. We use the Costco version because the 3 of use take this daily.
Ever since we started taking the Zyrtec, not 1 of us have been in the Dr. office with a sinus infection... we are going on 3 yrs now. I don't know if the Zyrtec is the magic pill... we did try Claritin once and it didn't seem to help.
So if I were to recommend one or the other allergy pills, I would recommend the 24 hr Zyrtec. Daughter and I take ours in the morning and have the best relief. Hubby's work best when he takes it at night.