Background: This study aims to analyze the work behaviors of patients with allergic rhinitis (AR) during the autumn pollen season, using a 2-week diary survey. Methods: In this study, we recruited patients with seasonal allergic rhinitis (SAR) who were allergic to autumn pollen using an experience sampling method. All participants completed a 2-week survey using the WeChat app during the autumn pollen season (September 16, 2018 through to September 30, 2018). Collected data included participants' general characteristics, nasal symptoms, symptoms of insomnia, mood, and unethical work behaviors. Results: The results showed that pollen concentration had a significant positive effect on the symptoms of rhinitis (P<0.001). Nasal symptoms had direct, positive effects on night-time insomnia (P<0.01) and a negative mood the next day (P<0.05). Insomnia positively affected a negative mood the nest day (P<0.01), while negative mood exhibited a direct, positive effect on unethical work behaviors (P<0.05). Furthermore, pollen concentration, nasal symptoms, and insomnia were indirectly but positively associated with unethical work behaviors in patients with SAR. Conclusions: Nasal symptoms in patients with SAR were aggravated by pollen dispersion that induced a higher incidence of insomnia, which subsequently provoked a negative mood the next day. Therefore, the spillover effects of seasonal pollen included an increased incidence of unethical work behaviors.