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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.
Headaches due to referred pain. Some headaches can be caused by pain in some other part of the head, such as tooth or ear pain, pain in the jaw joint and pains in the neck. Sinusitis is a common cause. The sinuses are 'holes' in the skull which are there to stop it from being too heavy for the neck to carry around.