Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had head pain so bad it seemed like your head was splitting? I when seemed like that, curled up in bed, unable to face the sunlight. I was handling sphenoid sinusitis, a condition that can actually mess with your life. https://griffinhezop.mybuzzblog.com/11129254/sphenoid-sinusitis-no-further-a-mystery