If the arteries are involved, the headache will be of a pulsing nature reflecting the beat of the heart. If, however, the muscles are involved the ache will be more dull and constant. Over and above this headaches fall into two basic categories organic and functional. Organic headaches accompany ailments to the nose and air sinuses, disorders of the teeth, jaw, eyes and ears, degenerative spinal conditions and inflammation of the arteries of the forehead. They may, of course, also be due to a more serious problem such as a tumor.
Functional headaches are due to some specific disturbance of function.
They are not due to any disease of function and, therefore, not as serious a concern as organic headaches. They are, however, a sign of disturbed function. In the immediate treatment of your headache self medication with an analgesic or pain relieving drug may be your first stop. Preparations that contain amidopyrine or phenacetin may be harmful and are best avoided. Stick with a simple drug like aspirin or paracetamol.