© 2021 Elsevier Masson SASThe aim of this study was to investigate the quality and reliability of YouTube videos related to allergic rhinitis. The videos were separated into two groups (reliable: Group 1; unreliable: Group 2) according to whether or not the content was scientifically reliable, proven, accurate, and useful, determined by two allergy specialist physicians. The DISCERN reliability tool, Global quality scale (GQS), and JAMA scoring system were also used as video scoring tools in the evaluations. Group 1 included 112 videos, and Group 2, 30 videos. The GQS points were 4 (2–5) and 4 (2–5) in Group 1, and 2 (1–5) and 2 (1–5) in Group 2 (P = 0.0001). The points in the DISCERN and JAMA scoring systems were found to be higher in Group 1 than Group 2 (P = 0.0001). Despite the reliability of the majority of videos on YouTube related to allergic rhinitis, the number of unreliable videos was not small. These unreliable videos can cause negative outcomes for patients. YouTube should give more weighting to videos containing scientifically proven information.