Creating A Risk Assessment Tool for Thunderstorm Asthma: the CARISTA Study

Inclusion Criteria: Consenting adults aged 18 to 70 years with seasonal allergic rhinitis willing to undertake: * Lung function testing * Blood sample collection for risk factor identification, -Prospectively logging their symptoms and medications through the springtime season using the CARISTA symptom monitoring platform . - Exclusion Criteria: * Individuals unable to provide informed consent * Individuals who do not suffer from symptoms of seasonal allergic rhinitis * Individuals who do not consent to lung function testing and blood sample collection - Individuals with unstable asthma (FEV1 by spirometry less than 70% predicted), a recent exacerbation or change of asthma preventive medication use (within one month) would be excluded, although re-screening would be permitted after one month, time permitting. * Individuals with severe asthma requiring the use of continuous oral corticosteroids or biological medication for severe asthma. * The presence of any medical illness, such as cardiac disease, pre-existing illness or immunomodulatory therapy that, in the opinion of the Investigators, would compromise participant safety or the derivation of biomarkers during the study.