InteractiveMyth Information: Adult AsthmaOverviewArticleDifficult-to-control asthma and severe asthmaWhen asthma symptoms persist, a person may have difficult-to-control asthma or severe asthma. Learn what these terms mean.ArticleHaving asthma as an older adultAn asthma diagnosis can happen at any age. Here's what adults over 50 need to know.TreatmentArticleTreatments for eosinophilic asthmaLearn about the different options for treating eosinophilic asthma, and the importance of an asthma action plan.