Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so bad it seemed like your skull was splitting? I once felt like that, huddled in bed, not able to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can really tinker your life. https://cashlhbvp.blognody.com/32102991/the-20-minute-rule-for-sphenoid-sinusitis