Skip to main content
Where to Buy
Español

Understanding Allergies

Woman sneezing from allergies
Understanding Allergies
Types
Understanding Allergies
Symptoms
Understanding Allergies
Treatments

More To Explore

Types
American Tree Pollen Allergy Guide

Tree pollen is the first seasonal allergen of the year. In the south, trees start releasing their pollen as early as January until June.

Treatment
Types of Allergy Medicine

There are so many different allergy medications to choose from. Find out what kind of treatments are available, and how each of them works to relieve your symptoms.

Avoid Blowing Your Nose & Find Congestion Relief With ZYRTEC-D
Treatment
All About Decongestants

Muddling through congestion along with your sneezing and watery eyes? It may be time for an allergy medicine with a decongestant. Learn more about this allergy alternative.

Types
About Hay Fever Allergies

Think you might be experiencing hay fever symptoms? Learn more about hay fever causes and how to help treat a hay fever allergy. You might be surprised to find that hay fever has nothing to do with hay.

Tree Pollen Allergies
Types
About Tree Pollen Allergies

When you look up at the beauty of a flowering tree, you’d never guess that tree pollen is one of the worst allergy offenders. Learn more about what trees to watch out for and when.

Types
About Grass Pollen Allergies

If summer is the worst time of year for your allergies, it’s likely that grass pollen is to blame. You can’t escape grass, but there are many ways to manage your allergies.

Types
Why Dust Mites Are Bad for Allergies

Dust mites are attracted to fabric and many other surfaces throughout your home. Even though you can’t see them, chances are, they’re all over.

Pages

Compare Zyrtec

See how Zyrtec® compares to others.

Find Out More
Get the ZYRTEC® ALLERGYCAST® app
Tools & Apps

Get the ZYRTEC® AllergyCast® app for your daily pollen forecast.

Standard data rates apply.

Get The App
Where to Buy