Most patients with symptoms of acute rhinosinusitis are treated with antibiotics. However, many cases of rhinosinusitis are secondary to viral infections and unlikely to benefit from antibiotic therapy. Inappropriate use of antibiotics in patients with acute nonbacterial rhinosinusitis contributes to the increase in bacterial antibiotic resistance. Consequently, safe and effective alternatives to antibiotics are needed in the treatment of acute rhinosinusitis caused by viral infections. Recent results from controlled trials have shown that intranasal corticosteroids, used in combination with antibiotics or as monotherapy in selected cases, provide significant symptom relief and resolution of acute rhinosinusitis. The use of intranasal corticosteroids in acute rhinosinusitis therefore might reduce the inappropriate use of antimicrobial therapy in acute rhinosinusitis.
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