Tension headaches are the most common of all headaches. They are not accompanied with vomiting or nausea hence the least severity of all. Tension headaches cause one to feel a constant pain or pressure around the head, particularly at the nape of the neck, base of the head and at the temples. They are believed to be caused when the muscles of the neck and scalp contract, and also due to any changes in brain chemicals. They are best treated with ibuprofen, aspirin or acetaminophen.
These are headaches that occur recurrently and in cycles or groups. They come all of a sudden with severe pain on one side of the head, watery eyes and a runny nose on the same side of the face. Bouts of a cluster headache last for weeks or months, followed by remission periods of no pain at all. When one experiences a cluster headache, he or she is extremely uncomfortable, restless and cannot lie down.