inspiring canadians to live better.

healthing leaf

inspiring canadians to live better.

healthing leaf
get healthing in your inbox with the morning checkup and weekender newsletter!

top of the page

allergic asthma

allergic asthma is an overreaction of the immune system to a substance (allergen) that results in symptoms of an asthma attack: difficulty breathing, wheezing, chest tightness, and coughing. allergens that can cause allergic asthma attacks include pollen, mould, animal dander, dust mites, cockroaches, and certain chemicals.

an attack may occur from a few minutes to an hour after exposure to an allergen or as long as 4 to 12 hours later. controlling a person's exposure to substances that trigger allergic asthma attacks may prevent the attacks or help make them less severe. also, there are medicines to help reduce the reaction to the allergen.

this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use. learn how we develop our content.

this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

advertisement