Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so painful it seemed like your skull was splitting? I once seemed like that, curled up in bed, unable to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can truly tinker your life. https://sleepapnearisks08568.blogthisbiz.com/37974049/the-best-side-of-sphenoid-sinusitis