What exactly is ‘Thunderstorm Asthma’ and who does it affect?

Recently, thunderstorm asthma warnings have been issued across Australia – but what exactly is it? For some people, especially those with asthma or hay fever, certain storm conditions can trigger severe breathing problems. Here’s how it happens, who’s most at risk, the symptoms to watch for, and the simple steps you can take to reduce the risk and keep your family safe.