Thick yellow or green nasal mucus
Nasal congestion or blocked nose
Facial pain or pressure, especially around the forehead, cheeks, eyes, or nose
Pain that gets worse when bending forward
Reduced or lost sense of smell
Upper tooth pain
Headache
Postnasal drip
Cough, especially worse at night
Fever
Bad breath
Fatigue
Symptoms lasting more than 10 days
Symptoms that improve and then get worse again
Swelling around the eyes
Severe symptoms or high fever
Vision changes
Confusion
Stiff neck