What is one of the most common precipitating factors of an acute asthma attack?

Viral respiratory infections are one of the most common precipitating factors of an acute asthma attack. They can lead to airway inflammation and increased mucus production, which can exacerbate asthma symptoms. During an infection, the respiratory system may become more reactive, causing bronchoconstriction and difficulty in breathing. This is particularly true for respiratory viruses such as rhinoviruses and respiratory syncytial virus, which are frequently associated with worsening asthma control.

While other factors such as occupational exposures, cigarette smoke, and changes in temperature can also trigger asthma attacks, viral infections are particularly significant due to their widespread occurrence and their potential to induce acute worsening of asthma in susceptible individuals. Understanding this helps in managing asthma better, especially during seasons when viral illnesses are more prevalent.