This study focuses on treating Acute Lower Respiratory Tract Infection and Acute Rhinosinusitis (infections affecting the airways and sinuses) with beta-lactam antibiotics. The research aims to determine the most effective duration of antibiotic treatment for these respiratory infections when treated in primary care settings.
The study examines whether shorter antibiotic treatment periods can be as effective as standard longer treatments. Patients will receive antibiotics through oral administration for different durations, with some patients taking the medication for a shorter time than others. The maximum treatment period will be 14 days.
During the study, patients will be monitored to see if their symptoms improve, particularly checking for the disappearance of fever and overall improvement in their condition. The study will track how quickly patients feel better and whether they need any additional treatment. Patients will keep a diary to record their symptoms and any side effects they experience during the treatment period.



Spain