During grass pollen season (1 October – 31 December) people may notice an increase in asthma and/or hay fever symptoms. Grass pollen season also brings the chance of epidemic thunderstorm asthma.

Epidemic thunderstorm asthma is thought to be triggered by a unique combination of high amounts of grass pollen in the air and a certain type of thunderstorm.

For people with asthma or hay fever, especially those who experience wheezing or coughing with their hay fever, thunderstorm asthma can be sudden, serious and even life threatening.

For more info – thunderstorm asthma