Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so painful it seemed like your head was splitting? I once seemed like that, snuggled in bed, not able to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can actually tinker your life. https://sleep-apnea-weight-gain51616.laowaiblog.com/30701052/the-20-minute-rule-for-sphenoid-sinusitis