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Hay fever is an allergic reaction to airborne allergens that can occur at any time of the year.

Learn about how a person with hay fever may be affected during a thunderstorm asthma event.

People who have asthma or hay fever can get severe asthma symptoms during pollen season when high grass pollen counts combine with a certain type of thunderstorm.

Download media kit resources and high-resolution files to support thunderstorm asthma media.

Egg allergy is one of the most common causes of allergies in children with symptoms ranging from mild to life-threatening reactions.

Pollen allergies cause seasonal hay fever and asthma and can be treated with antihistamines, nasal sprays or asthma medication

Find out when thunderstorm asthma events take place, risks, symptoms and how to protect yourself and others. What people with hay fever and asthma should know.

Thunderstorm asthma overview

Watch this overview about thunderstorm asthma to be prepared this pollen season

Thunderstorm asthma is triggered when there is high amounts of grass pollen in the air. It can result in people wheezing, feeling short of breath, and tight in the chest with coughing.