- Minor symptoms: - Frontal headache - Fever (oral = 38.0°C/100.4°F, tympanic = 38.5°C/101.2°F, axillary = 37.5°C/99.5°F) - Culture material obtained by sinus puncture; the aspirated specimen sent for Gram stain, quantitative culture and susceptibility testing prior to initiation of antimicrobial therapy