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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.
The sinuses are hollow pockets within the bones surrounding the nose, that produce mucus, which drains into the nose. If your nose is swollen due to inflammation, it can block the sinuses causing pain, congestion, cough, post-nasal drip, and sometimes tooth and facial pain. The cause of sinus trouble comes from tiny holes that connect your nasal passages to your sinuses.