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Woman outside on a sunny spring day standing Infront of a blossoming floral tree with a smile on her face.
Allergy Treatment

Types of Allergy Medicine

Find out what kinds of allergy treatments are available, and how they work to relieve your symptoms.
Women suffering from allergies and blowing her nose while outside
Allergy Symptoms

Common Allergy Symptoms and How to Get Relief

Learn more about allergy symptoms and how to identify common signs of a reaction. Find out how you can seek relief from allergies with ZYRTEC.
Sore Throat
Allergy Symptoms

Sore Throat From Allergies: Symptoms and Remedies

Many people will experience a sore throat from their allergies. Find out more about this symptom, and how you might be able to soothe it.
AllergyCast app
Allergy Forecast

Discover Your Allergy Forecast with ZYRTEC®

Get allergy forecasts & see pollen counts near you today with our online allergy index tool or try the ALLERGYCAST® app for a personalized allergy forecast & tracker.
Cetirizine hydrochloride chemical structure
Allergy Treatment

What Is Cetirizine Hydrochloride (HCl), And What Is It Used For?

Cetirizine is an antihistamine often used to treat allergy symptoms. In this guide, we explore how it works, its side-effects and correct dosage.
Allergy Treatment

Allergy Muddlers in America

Read facts about how allergy symptoms are on the rise and learn how you can find relief from your worst allergy symptoms with ZYRTEC®.
Infographic titled "6 things to Know About Sinuses"
Allergy Symptoms

6 Things to Know About Sinuses

You know sinuses are in your head, but have you ever wondered exactly what they are? Here are some things to know about sinuses.
Antihistamines and How Do They work
Allergy Treatment

What are Antihistamines and How Do They Work?

Learn all about antihistamines, including what they are, how they work, what they treat & more. Plus, find answers to frequently asked questions about antihistamines.

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