“…However, it is also associated with systemic side effects or even with the risk of mortality, particularly when used repeatedly or for a long term [6,7,21], as some of our participants referred to its use as "biting the bullet" or "taking poison". In the literature, several qualitative studies addressed the experiences and concerns regarding the use of OCSs among severe asthmatic patients in Western countries [8,[10][11][12], and two studies [8,10] particularly focused on the experience of OCS burden, describing "oral steroid phobia", major side effects, and cost-benefit considerations when taking OCS. Our findings are generally in line with those of previous reports [8,[10][11][12], in terms of the experience of side effects and also the patients" bivalent perception of the necessity of OCSs; however, our study is a meaningful addition to the literature and also extension to Korean patients, in that it reveals several factors underlying the patient"s reliance on OCS, such as agonizing experience of exacerbations, fear of future re-worsening, and also importantly the lack of proper prior knowledge about the side effects of OCS.…”