Seasonal Allergies: Causes and Symptoms

Don’t let seasonal allergies hold you back

Family smiling and laying in a field with a dog

Allergy season is different for everyone. That’s because different kinds of outdoor allergens - or irritants - get distributed into the air. Your seasonal allergies happen from exposure to mold spores or to the pollen that is being released by the local grass, trees and ragweed whenever that occurs in your area.

Outdoor mold allergies

Molds thrive in many environments, both indoors and outdoors. They flourish in damp, humid dwellings. Symptoms include:

  Itchy nose or throat

  Itchy, watery eyes

  Stuffy or runny nose

Learn how to avoid mold allergens.

Pollen allergies

Allergy symptoms from exposure to trees, grass, and weed pollen include:


   Nasal congestion

   Runny nose

   Watery eyes

   Itchy throat or eyes

Ragweed allergies

Ragweed season occurs from mid-August to October when certain plant species - like sage and mugwort - distribute pollen into the air.5

Avoid bringing pollen into your home by removing clothes that you’ve worn outdoors and washing them right away.

Symptoms of ragweed allergies include:


   Itchy nose or throat

   Itchy eyes

   Stuffy or runny nose

Here are some tips to minimize seasonal allergies:

   Stay indoors when the pollen count is high

   Keep windows closed

   Use an air conditioner

   Save outdoor activities for late afternoon

   Avoid gardening when your allergies are active

   Wear a face mask when you work outdoors

   Keep pollen out of your eyes with wraparound glasses

   Keep grass well trimmed

   Remove pollen from your skin and hair by rinsing after being outside

   Wash or brush your pets after they’ve been outside

Mother and daughter blowing bubbles in a forest

Allegra® is here to help

Allegra® offers multi-symptom relief from sneezing, runny nose, itchy, watery, red eyes and itchy nose/palate/throat. For added relief from nasal congestion associated with seasonal allergies, there's Allegra®-D. Allegra®, Live your Greatness.

    1. NIH Medline Plus Magazine, Editors. What triggers seasonal allergies?, NIH Medline Plus Magazine (,2020

    2. American Academy of Allergy, Asthma, and Immunology, Editors. Mold Allergy, American Academy of Allergy, Asthma, and Immunology (,2021

    3. American College of Allergy, Asthma & Immunology, Editors. Pollen Allergy, American College of Allergy, Asthma & Immunology (,2019

    4. Asthma and Allergy Foundation of America, Editors. Ragweed Pollen Allergy, Asthma and Allergy Foundation of America (,2019

    5. Editors. Allergies and Asthma. Asthma Canada ( 2022

Recommended Reading

Indoor Allergies

There’s no place like home - for allergies! Just stepping indoors, at home, work, or school, exposes you to numerous allergens.