Headache relief medicines are used to alleviate pain and discomfort caused by various types of headaches, including tension headaches, migraines, and cluster headaches. These medications work by targeting the underlying causes of headache pain, such as inflammation, muscle tension, or vascular changes. Common forms include over-the-counter options like acetaminophen, ibuprofen, and aspirin, as well as prescription medications such as triptans for migraine relief.