The FAQ says the botanicals support the body's response to airway irritation, which is careful support wording rather than a treatment claim.
Structure and function wording describes how an ingredient may support a normal body process. It does not say the spray stops irritation or fixes its cause. That distinction is why the same page also carries a not-a-treatment statement.
If irritation is a daily, worsening or painful issue, get it checked. If it is a mild, occasional annoyance, the useful questions are about routine: when you would use the spray, for how long, and what you would count as a fair trial.