Eos Asthma Toolkit

Helping you breathe easier with care, support, and facts about eosinophilic asthma.

Eosinophilic asthma (or eos asthma) is a type of severe asthma. It is diagnosed when there are too many eosinophils in your body. Eosinophils are a kind of white blood cell. They cause inflammation (swelling) in your airways and make it harder to breathe.

People with eos asthma often have more severe wheezing, coughing, shortness of breath, and asthma attacks. Regular asthma medications might not work well for them. Eos asthma can affect adults, young adults, and sometimes children.

This toolkit will help you:

  • Understand eos asthma
  • Learn how it’s treated
  • Get tips for daily life
  • Find a doctor
  • Discover helpful resources
  • Join research and advocacy
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What is eos asthma?

Learn about eosinophilic inflammation, how it affects your lung function, and how it can lead to asthma symptoms like coughing, wheezing, chest tightness and shortness of breath.

Eos asthma is different from other types of asthma, like allergic asthma, because the inflammation is often more severe and may not be triggered by allergies alone.

Many people with eos asthma also have other related health conditions, called comorbidities. Common examples include chronic sinus infections and nasal polyps. Treating these conditions, along with your asthma, can make it easier to breathe and keep symptoms under control.

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How eos asthma is diagnosed

Learn what tests are used to diagnose eosinophilic asthma. Find out about the blood test to check your blood eosinophil count, and the sputum test (mucus you cough up) to check for eosinophilic airway inflammation.

If the diagnosis is still unclear, your doctor may order a bronchial biopsy. Your doctor will also ask about your personal and family history of asthma, including your symptoms and how often you have asthma attacks.

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How to treat eosinophilic asthma

Learn about medications and treatments for eosinophilic asthma and how to keep chronic inflammation under control. Traditional asthma medications such as inhaled corticosteroids may not always work as well for people with eosinophilic asthma.

Biologic therapies are newer treatments that target eosinophils and can reduce serious asthma attacks. They can improve breathing and help people with uncontrolled asthma feel better.

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Living with eos asthma

Living with eos asthma means you are living with a chronic lung disease that can be hard to control.

Learn how eos asthma can affect your quality of life. Get advice on how to stay healthy, avoid flare-ups, and keep doing the things you enjoy. Whether it’s going to school, working, or spending time with family, managing eosinophilic airway inflammation is key to feeling better every day.

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Find an eos asthma specialist

Seeing the right doctor can make a big difference. An eos asthma specialist can help you build a treatment plan that works for you.

Learn what questions to ask during visits, how to get ready for follow-ups, and what tests might be needed to check your lungs.

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Resources and support for eos asthma

You may feel alone in living with eos asthma. The good news is you are not! Get handouts, videos, and resources to help you stay up-to-date on treatments, connect with others, and track your symptoms. You’ll find tools to explain eos asthma to family, teachers, and friends so they can support you.

The Resources & Support section also includes resources for healthcare professionals, like patient-friendly posters and educational videos, to stay up to date on the latest research and treatment.

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Research and advocacy for eos asthma

Find out how research and advocacy work together to improve care for eos asthma. Learn about new studies and discoveries that are helping doctors better understand the condition. Clinical trials are an important part of this work. They test new treatments to see if they are safe and effective. Joining a trial can help you and others living with eos asthma.

Learn how to make a difference through advocacy. This means sharing your story, raising awareness, or supporting better access to care. Even small steps can lead to big changes. Find out how to get involved and help bring new treatments to more people.

A smiling family of three sits outdoors. A woman in a plaid shirt and a man in a red t-shirt look at each other lovingly, while a young child hugs the man from behind, all surrounded by greenery.
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A smiling family of four sits on grass in a park. The father holds a happy baby, while the mother and older child, both also smiling, sit beside them. Trees and a pond are in the background.