- Home
- Parents Home
- Allergy Center
- Asthma Center
- Cancer Center
- Diabetes Center
- A to Z Dictionary
- Emotions & Behavior
- First Aid & Safety
- Food Allergy Center
- General Health
- Growth & Development
- Flu Center
- Heart Health
- Homework Help Center
- Infections
- Diseases & Conditions
- Nutrition & Fitness Center
- Play & Learn Center
- School & Family Life
- Pregnancy Center
- Newborn Center
- Q&A
- Recipes
- Sports Medicine Center
- Doctors & Hospitals
- Videos
- Para Padres
- Home
- Kids Home
- Asthma Center
- Cancer Center
- Movies & More
- Diabetes Center
- Getting Help
- Feelings
- Puberty & Growing Up
- Health Problems of Grown-Ups
- Health Problems
- Homework Center
- How the Body Works
- Illnesses & Injuries
- Nutrition & Fitness Center
- Recipes & Cooking
- Staying Healthy
- Stay Safe Center
- Relax & Unwind Center
- Q&A
- Heart Center
- Videos
- Staying Safe
- Kids' Medical Dictionary
- Para Niños
- Home
- Teens Home
- Asthma Center
- Be Your Best Self Center
- Cancer Center
- Diabetes Center
- Diseases & Conditions
- Drugs & Alcohol
- Expert Answers (Q&A)
- Flu Center
- Homework Help Center
- Infections
- Managing Your Medical Care
- Managing Your Weight
- Nutrition & Fitness Center
- Recipes
- Safety & First Aid
- School & Work
- Sexual Health
- Sports Center
- Stress & Coping Center
- Videos
- Your Body
- Your Mind
- Para Adolescentes
Do Allergies Cause Asthma?
Allergies don't cause asthma. But people who have allergies (or have family members who have allergies) are more likely to get asthma than those who don't.
And when someone already has asthma, an allergic reaction can sometimes make them have asthma symptoms.
Whatever causes an allergic reaction — like pollen — can also trigger asthma symptoms in some people. But not everyone who has allergies develops asthma. And not all cases of asthma are related to allergies.
How Do Allergies Make Asthma Worse?
Lots of people with asthma find it gets worse when they're around allergens (the things that give them an allergic reaction). Common allergens include dust mites, mold, pollen, and animal dander.
If you have allergies, your immune system reacts to an allergen like it's an unwanted invader. To fight it off, the immune system makes an antibody called immunoglobulin E (IgE). This starts a process where the body releases substances designed to protect it. One of these is histamine. Histamine causes allergic reactions that can affect the eyes, nose, throat, skin, and lungs.
When the airways are affected, it can bring on symptoms of asthma (like coughing, wheezing, or trouble breathing).
The body remembers this reaction. Each time the allergen comes into contact with the body, the same thing can happen. Because of that, allergies can make it hard for some people to keep their asthma under control.
How Do Allergies Affect Asthma?
If you have asthma, your doctor can see if allergies may be causing problems for you. The doctor may suggest a visit to an allergist so you can find out if you're allergic to anything.
If you have allergies, it doesn't mean that they're causing your asthma symptoms. But knowing what they are lets you and your doctor start looking into the connection.
Avoiding possible allergens may be a big help in controlling your asthma. If you can't completely limit your exposure to something you're allergic to, your doctor may recommend medicine or allergy shots.
Note: All information is for educational purposes only. For specific medical advice,
diagnoses, and treatment, consult your doctor.
© 1995- The Nemours Foundation. KidsHealth® is a registered trademark of The Nemours Foundation. All rights reserved.
Images sourced by The Nemours Foundation and Getty Images.
Humana Healthy Horizons in Ohio
- Humana Healthy Horizons
- Humana Healthy Horizons Extras
- Member Support
- Care management
- Caregiver resources
- Child well-being
- Disease management
- Documents and forms
- Enrollment
- Grievances and appeals
- Health and wellness
- KidsHealth
- Member Handbook
- New Member Resources
- News and alerts
- OhioRISE Plan
- Pregnancy outcomes
- Tobacco cessation
- Why Humana
- Your primary care provider
- For Providers
- Contact us
- Accessibility
- Humana Healthy Horizons
- Humana Healthy Horizons Extras
- Member Support
- Care management
- Caregiver resources
- Child well-being
- Disease management
- Documents and forms
- Enrollment
- Grievances and appeals
- Health and wellness
- KidsHealth
- Member Handbook
- New Member Resources
- News and alerts
- OhioRISE Plan
- Pregnancy outcomes
- Tobacco cessation
- Why Humana
- Your primary care provider
- For Providers
- Contact us
- Accessibility