Non-interventional Study: Application of Ectoin® Rhinitis Nasal Spray in Patients With Acute Rhinosinusitis

This is a comparative, open label, parallel group, non interventional study to further demonstrate the effectiveness and tolerability of Ectoin® Rhinitis Nasal Spray. In addition the effectiveness and safety shall be compared to a Sinupret forte. The patient applies Ectoin® Rhinitis Nasal Spray or takes Sinupret forte according to the instructions for use. The observation takes place over a period of 14 days. Response to treatment is recorded at day 7 and day 14 by the physician and in daily by the patient in a dairy.