• History of acute upper respiratory infection, dental infection, or nasal allergy.
• Pain, tenderness, redness, swelling over the involved sinus.
• Nasal congestion and purulent nasal discharge.
• Clouding of sinuses on x-ray or transillumination.
• Fever, chills, malaise, headache.
• Teeth hurt or feel “long” (maxillary sinusitis), or swelling occurs near the nasal
canthus of the eye (ethmoid sinusitis).
General Considerations
Acute sinus infection usually follows an acute upper respiratory infection, swimming or diving, dental abscess or extractions, or nasal allergies, or occurs as an exacerbation of a chronic sinus infection.
