Asthma symptoms can be acute and intermittent or chronic, or sometimes a combination of both.
How can an allergic reaction cause asthma symptoms?
Asthma is characterised by inflammation and reversible and irreversible narrowing of the small airways in the lungs.
The link between asthma and allergy
Research shows that 80 percent of people with asthma also test positive to allergies, many of them experiencing allergic rhinitis (hay fever).
Other triggers will symptoms include viral infections, exercise, emotion or exposure to cold.
What are the symptoms of asthma?
What is thunderstorm asthma?
Thunderstorms tend to release lots of small particles of pollen into the air, which can trigger allergic rhinitis and asthma. Fast changes in wind and temperature can also be triggers.
Not all thunderstorms will trigger asthma attacks and other weather factors can also contribute. When a thunderstorm that does trigger asthma comes along (luckily, these are reasonably rare), lots of people may experience asthma attacks all at once. These people won’t all have pollen allergies – other triggers like the changes in temperature and humidity can also be triggers.