Note: Before reviewing any CalPCA webinar, regardless of topic, please conduct the Fi$Cal User Productivity Kit (UPK) training provided via the links above. The CalPCA training offered is designed to enhance user knowledge to the already designed Fi$Cal UPK's. State Contract & Procurement Registration System (SCPRS)
1 Ethmoid Sinus Cavities â are located in-between the eyes. 2  An infection in these sinus cavities can cause pain in-between the eyes. 3  This pain can extend to the forehead and cause headaches. 4  Frontal Sinus Cavities â are found above the eye and eye bone.
Any of these can hurt when you have a sinus infection. Inflammation and swelling cause your sinuses to ache with a dull pressure. You may feel pain in your forehead, on either side of your nose, in your upper jaws and teeth, or between your eyes. This may lead to a headache (see below).