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Dry cough
Uncontrollable coughing at night
Persistent cough
Cough with no phlegm
Cough worse at night
Dry tickly cough that won't go away
Phlegm stuck in throat for months
Frequent cough attacks
Paroxysmal cough
Constant tickle in throat causing coughing
Cough without fever
Cough after exercise
Not seeing your symptoms? No worries!
What is Cough Variant Asthma?
A kind of asthma with the main symptom being a constant dry cough. This occurs because the airways are very sensitive and overreact to foreign substances. The root cause is unclear but involves genetics. Many triggers for asthma flare-ups exist, including smoke, pollen, dust mite droppings, cold weather, exercise, and viral infections.
Typical Symptoms of Cough Variant Asthma
- Cough worsens after exercise
- Discharge of yellow or green sputum.
- Sudden, violent bursts of coughing
- Difficulty breathing that is worse at night or early morning
- Family history of Asthma, Eczema, Allergic rhinitis or Allergic conjunctivitis
- Allergies other than to food, metal or drugs
- Barking cough like a seal or a dog
- Cough that worsens at night
Diagnostic Questions for Cough Variant Asthma
Your doctor may ask these questions to check for this disease:
- Does your cough worsen after exercise?
- Do you have yellow or green sputum?
- Do you have sudden, violent bursts of coughing?
- Is your difficulty breathing worse at night or early morning?
- Does anyone in your family have a history of asthma, allergies, or hay fever?
Treatment of Cough Variant Asthma
Asthma is treated by avoiding triggers, using "rescue" inhalers during attacks, and "preventive" inhalers. The doctor may prescribe different inhalers for different purposes (prevention and rescue). Other types of inhalers and tablets can be added to improve control. In cases of Severe and Uncontrolled Asthma, biologic therapies should also be considered, which are targeted medications that address specific immune system pathways and reduce inflammation in the airways. Severe attacks can be life-threatening and require emergency medical care. Doctors who specialize in treating patients with asthma are called allergists and pulmonologists.
Reviewed By:
Phillip Aguila, MD, MBA (Pulmonology, Critical Care)
Dr. Aguila graduated from West Virginia University School of Medicine. He has trained in Pulmonary and Critical Care Medicine at The University of North Carolina in Chapel Hill and Internal Medicine at Medical College of Pennsylvania/Hahnemann University at Allegheny General Hospital in Pittsburgh Pennsylvania. He has served as Assistant Professor since 2010.
Eisaku Kamakura, MD (Pulmonology)
Dr. Kamakura graduated from the Tokyo Medical and Dental University, School of Dentistry, and the Niigata University School of Medicine. He trained at Yokosuka Kyosai Hospital and held positions in the Respiratory Medicine departments at Yokosuka Kyosai Hospital, Tokyo Medical and Dental University, Ome City General Hospital, and Musashino Red Cross Hospital. In 2021, he became the specially appointed assistant professor at the Department of General Medicine, Niigata University School of Medicine.
Content updated on Feb 19, 2025
Following the Medical Content Editorial Policy
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Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1References
Cox JK, Lockey R, Cardet JC (2021). Cough-Variant Asthma: A Review of Clinical Characteristics, Diagnosis, and Pathophysiology. The journal of allergy and clinical immunology. In practice.
https://pubmed.ncbi.nlm.nih.gov/39557293/Corrao WM (2018). Pearls and pitfalls in the diagnosis of cough variant asthma. Allergy and asthma proceedings.
https://pubmed.ncbi.nlm.nih.gov/30401324/Matsumoto H, Niimi A, Takemura M, Ueda T, Tabuena R, Yamaguchi M, Matsuoka H, Hirai T, Muro S, Ito Y, Mio T, Chin K, Nishiyama H, Mishima M (2006). Prognosis of cough variant asthma: a retrospective analysis. The Journal of asthma : official journal of the Association for the Care of Asthma.
https://pubmed.ncbi.nlm.nih.gov/16517429/