Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Ever had a headache so painful it seemed like your skull was splitting? I when felt like that, curled up in bed, not able to face the light. I was dealing with sphenoid sinusitis, a condition that can really mess with your life. https://codynkdys.rimmablog.com/30897088/detailed-notes-on-sphenoid-sinusitis