- A clinical diagnosis of acute uncomplicated bacterial maxillary sinusitis as
demonstrated by presence of the following cardinal signs and symptoms for a minimum
duration of 7 days, and no longer than 30 days:
- Facial pain, pressure and/or tightness over one or both maxillary sinuses, and/or
pain in one or both maxillary areas that worsens with movement or percussion, and
- Presence of one or more of the following signs:
- Discolored (yellow-green) nasal discharge
- Discolored (yellow-green) drainage in the posterior pharynx
- Discolored (yellow-green) discharge from the maxillary sinus orifice
- Two or more of the following symptoms are present:
- Fever, as defined by:
- Oral temperature: >38C or >100.4F, or
- Tympanic temperature: >38.5C or >101.2F
- Frequent coughing
- Nasal congestion,
- Post-nasal drainage.
- Treatment with any systemic antibiotic within 30 days prior to enrollment
- Symptoms of sinusitis lasting for longer than 30 days;
- Four or more episodes of acute sinusitis within the preceding 12 months;