Less than 10% of people with asthma are diagnosed as having severe asthma. More unpredictable and harder to manage than mild and moderate asthma, severe asthma is the most debilitating form of this condition.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/what-is-severe-asthma-and-how-do-you-know-if-you-have-it