Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had head pain so painful it seemed like your skull was splitting? I when felt like that, curled up in bed, unable to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can actually tinker your life. https://landenzdyvx.glifeblog.com/30707835/sphenoid-sinusitis-things-to-know-before-you-buy