Cause of a Sinus Headache
Sinus Infection
The early symptoms of sinusitis include a runny or stuffy nose, postnasal drip, earache, pain or pressure around the eyes or cheekbones, facial swelling, dizziness, headache, sore throat, fever, bad breath, tooth pain or sensitive, fatigue, cough, loss of sense of smell, hearing loss, and tinnitus (ringing in the ears).