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Close up view of brown leaves on grass in a park with trees in the background
Outdoor Allergies

Understanding Fall Allergies

Seasonal allergens, such as ragweed pollen and mold, cause common fall allergies. Learn the triggers for these autumn allergies and get help with fall allergy relief.

Infographic titled: "A Guide to Allergies at Nigh"
Living with Allergies

Guide to Allergies at Night

Check out these helpful things you can do around the house to help manage your allergy symptoms at night.

Illustration of a tree next to a bunch of grass

Grass Pollen Allergy Symptoms and Treatment

Discover the different types of grass pollen allergy and how grass pollen may affect you, as well as how to manage and relieve your symptoms with Zyrtec.

Tree pollen infographic titled "a guide to American tree pollen"
Different Types of Allergies

Tree Pollen Allergy Symptoms and Types

A tree pollen allergy can start in early spring and last until summer. Understand symptoms, the different types and ways to treat your allergy.

Outdoor Allergies

Month-By-Month Pollen Allergy Guide

Ever wonder what the pollen is going to be like each month? The weather, location, and time of year determine which types of pollen are most prevalent. This quick guide can help you understand which months have the highest levels of pollen and help you plan ahead throughout the year.

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.

Various types of weeds on a white background
Outdoor Allergies

About Weed Pollen Allergies

Learn about weed pollen and how you can manage this powerful allergy trigger.

Sneezing woman surrounded by pollen and outdoor allergy triggers
Different Types of Allergies

What is Hay Fever?

Discover what hay fever is, when it strikes and how it is connected to seasonal allergies. Plus, learn about common symptoms, causes and remedies to help with relief.

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