Forget the temperature – for hayfever sufferers the pollen count is also a key metric that can turn what otherwise looks like a beautiful day for riding into a nightmare no-go. Hayfever season lasts ...

North Carolinians are facing a severe allergy season, with the Asthma and Allergy Foundation of America ranking Raleigh among the worst cities in the U.S. for allergies.

As with other drugs, cetirizine can cause side effects, such as drowsiness and sore throat. If you are not able to tolerate side effects from cetirizine, talk with your doctor or pharmacist.

Medically reviewed by Daniel More, MD Common side effects of Zyrtec (cetirizine) can include drowsiness, fatigue, dry mouth, ...