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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.
Sinus Symptom 3: Pain. As sinuses become clogged or inflamed, they tend to produce pain, beginning on one side of the head and typically spreading to both sides. You may also experience headaches that tend to intensify when bent over. If the infection spread through to the back of the nasal passageways you may experience ear aches.