Purpose: Psoriasis is an autoimmune pathology characterized by chronic inflammation with known multiorgan involvement. In the literature, there are few studies investigating the effects of psoriasis on upper respiratory tract mucosa. Our aim in our study was to investigate the possible effect of psoriasis disease severity and duration on nasal mucosa. Methods: A study group was formed from patients with psoriasis and disease duration, Psoriasis Area Severity Index (PASI) and Nasal Obstruction Symptom Evaluation (NOSE) scores of these patients were recorded. Demographic data were noted in all participants with the participation of control group patients, saccharin test was performed to evaluate the nasal mucosa and nasal mucociliary clearance (NMC) times were measured. Psoriasis patients with pathology that may cause nasal obstruction were excluded from the study. Results: A total of 59 people (30 patients and 29 controls) aged 20–65 years were included in the study. There was no difference in age and gender distribution between the two groups. No statistically significant difference in the NMC time between two groups. In the patients group, a correlation was observed between the NMC time to the NOSE test, but no correlation was observed between the NMC time to the duration of the disease and the PASI score. Conclusion: In our study, no difference was observed in NMC time between the two groups and according to the duration or severity of the disease. In addition, NOSE score of patients was also relatively low. No significant impact of psoriasis on nasal functions was found.