# EOS Asthma Toolkit > The EOS Asthma Toolkit is a patient education resource produced by Allergy & Asthma Network focused on eosinophilic asthma (eos asthma), a subtype of severe asthma characterized by elevated eosinophil levels that cause airway inflammation. Standard asthma medications often do not provide adequate control for people with eos asthma, and biologic therapies are frequently required. This site helps patients understand their diagnosis, navigate treatment options, and find specialist care. Eosinophilic asthma is distinct from allergic asthma and other asthma subtypes. It is diagnosed through blood tests and sometimes sputum analysis measuring eosinophil counts. People with eos asthma often experience frequent and severe exacerbations, may require oral corticosteroids, and are candidates for biologic medications such as Fasenra (benralizumab), Nucala (mepolizumab), Cinqair (reslizumab), Dupixent (dupilumab), and Tezspire (tezepelumab). The site is intended for patients, caregivers, and healthcare professionals. It does not provide individualized medical advice. ## Understanding Eos Asthma - [What Is Eos Asthma?](https://eosasthma.org/what-is-eos-asthma/): Explanation of eosinophilic inflammation, how it affects lung function, and how eos asthma differs from other asthma types - [Diagnosis & Treatment](https://eosasthma.org/diagnosis-and-treatment/): How eos asthma is diagnosed (including blood eosinophil counts and sputum testing) and available treatments including biologics - [Living with Eos Asthma](https://eosasthma.org/living-with-eosinophilic-asthma/): Practical tips for managing daily life, reducing triggers, and maintaining quality of life with eos asthma ## Support & Research - [Resources & Support](https://eosasthma.org/resources-and-support/): Patient support tools, advocacy contacts, and community resources - [Research](https://eosasthma.org/research/): Current clinical research on eosinophilic asthma and how patients can get involved - [Find a Specialist](https://apfed.org/find-support-treatment/specialist-finder/): Locate an allergist, pulmonologist, or eosinophilic disease specialist (via APFED) ## Related Sites - [Main AAN Website](https://allergyasthmanetwork.org/): Allergy & Asthma Network patient education and advocacy - [Biologic Medications](https://biologicmeds.org/): Detailed patient information on biologic therapies used in eos asthma treatment - [What Is Asthma? (AAN)](https://allergyasthmanetwork.org/what-is-asthma/): Broader asthma education including other subtypes