A qualitative process evaluation of a nasal spray intervention to prevent respiratory tract infections.

ABSTRACT: Nasal sprays could be used to prevent and manage respiratory tract infections (RTIs). As part of a randomized controlled trial (ISRCTN17936080), participants received one of two nasal sprays (gel-based vs. saline) and a digital intervention. The digital intervention used behaviour change theories to encourage nasal spray use to reduce the severity and occurrences of RTIs. We explored participants' experiences of the digital intervention and nasal spray. We interviewed 31 participants (aged 19-80), sampled from the two nasal spray intervention trial arms across 3 winter seasons (including at the height of COVID-19). We analysed the interviews using thematic analysis and found two themes regarding facilitators and barriers to nasal spray use. The facilitators of nasal spray use revolved arou

SUBMITTER: Dennis A 

PROVIDER: S-EPMC12040087 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature