In an open, randomized prospective comparative clinical study in parallel groups of patients with a diagnosis of acute respiratory infection, acute rhinosinusitis, 107 children aged 4—5 years took part. The purpose of this study was to compare the effectiveness of various treatment regimens for acute viral rhinosinusitis in children. We compared the treatment effectiveness of acute viral rhinosinusitis using the herbal medicine Sinupret in the form of oral drops, standard treatment and standard treatment supplemented with topical antibacterial drugs. The objectivity of treatment effectiveness evaluation was based on the complaints’ dynamics, the changes’ presence in the mucous membrane of the nasal cavity within 10 days: at the initial visit, after 3 days, on the 7^th and 10^th days after the initial examination. A follow-up visit was also scheduled for the 14^th day. The analysis of the obtained data revealed that the Sinupret usage in the complex treatment of children with viral etiology acute rhinosinusitis contributes to a more pronounced positive symptoms’ dynamics compared to children who did not receive Sinupret. Sinupret eliminates mucostasis, which contributes to a faster restoration of the drainage and ventilation function of the auditory tube, restores mucociliary clearance, improves the condition and well-being of children, improves the effectiveness of therapy and shortens the treatment time.