What should you know about mold and asthma?

Mold releases tiny particles and spores into the air. In a sensitive person, these can irritate the airways or provoke an allergic response. Asthma may then present with cough, wheezing, chest tightness, or shortness of breath. Symptoms can be worse in rooms with visible mold, musty smells, leaks, condensation, or poor ventilation, but symptoms can also have other triggers.

Mold exposure does not prove that asthma is the cause of every cough. Allergic rhinitis, a house dust mite allergy, infection, or another airway problem can produce overlapping symptoms. A clinician can compare timing, examination findings, and response to treatment.

Fix leaks, dry damp surfaces promptly, improve ventilation, and keep indoor humidity comfortable. Do not scrape or brush extensive mold yourself; cleaning can release particles. Ask someone without asthma to clean small areas using suitable protection, or arrange professional remediation for widespread growth.

Continue your prescribed asthma controller and reliever plan. Keep a record of where symptoms occur and how quickly they improve after leaving the area. Do not stop preventer medicine simply because mold has been removed.

Seek emergency help if breathing is very difficult, speech is limited by breathlessness, lips look blue or grey, or a reliever inhaler is not helping according to your action plan. Arrange prompt review for nighttime symptoms, repeated reliever use, worsening wheeze, or cough that continues after leaving the damp environment.

Ask whether your symptoms fit asthma, whether allergy testing could help, and how to adjust your written action plan during an exposure. Ask when nebuliser treatment is appropriate and how to distinguish an asthma flare from infection.