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Understanding Allergies

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IS IT A COLD OR ALLERGIES?

Do you have a cold or allergies? Take this simple quiz to learn the difference between a cold and allergies so you can get the best treatment for your symptoms.

UNDERSTANDING ALLERGY SYMPTOMS

Learn about the different types of allergy symptoms, such as a runny nose, sneezing, and watery eyes.

Human Allergy Symptoms Caused by Dogs

Watch this video to learn how to recognize allergy symptoms caused by dogs and find information on allergy relief.

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Different Types of Allergies

American Grass Pollen Allergy Guide

Use our tree pollen allergy guide to help you recognize the types of grass that may trigger your allergy symptoms.

Different Types of Allergies

American Tree Pollen Allergy Guide

Use our tree pollen allergy guide to help you recognize the types of trees that may trigger your allergy symptoms.

Allergy Treatment

Types of Allergy Medicine

Find out what kinds of allergy treatments are available, and how they work to relieve your symptoms.

Avoid Blowing Your Nose & Find Congestion Relief With ZYRTEC-D

Allergy Treatment

All About Decongestants

What does a decongestant do? Learn all about decongestants for allergies, including how they differ from antihistamines.

Different Types of Allergies

About Hay Fever Allergies

What is hay fever? Learn more hay fever causes, symptoms and remedies, so your spring can be less muddled by allergies.

Different Types of Allergies

About Tree Pollen Allergies

Learn about tree pollen allergies. Find out what trees to watch out for, how to avoid tree pollen, and more.

Different Types of Allergies

About Grass Pollen Allergies

Find out what grass pollen is, what to watch out for and what to do to help relieve allergy symptoms when outdoors.

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

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Where to Buy

Understanding Allergies

Featured Articles

IS IT A COLD OR ALLERGIES?

UNDERSTANDING ALLERGY SYMPTOMS

Human Allergy Symptoms Caused by Dogs

More To Explore

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