Causes of head pain and soreness include eye strain, hypertension, whiplash and a sore throat. Other causes are infections, nerve pain, trauma and sinusitis, according to Health Hype.
Identifying the area of the head that hurts helps diagnose the cause as different areas relate to certain conditions. Eye strain commonly causes pain on the top of head and in the forehead area, explains Health Hype. Hypertension and whiplash may cause pain in the top or back of the head. Sinusitis is known to cause pain in the upper jaw area, around the nose and in the forehead area while a sore throat may cause soreness in the side of the head.