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Migraine headache pain can be severe and accompanied by nausea, vomiting, and sensitivity to odors, light and sound. If untreated, migraine symptoms can be so severe that people need to lie down for a few hours or days. Although there is no cure for migraines, there are a variety of effective treatments including medications to relieve symptoms, medications to prevent episodes, and lifestyle changes that can help.

Researchers suspect that migraines may be caused by a nerve impulses (trigeminal nerve) that sends signals about pain and also causes the blood vessels (arteries) that send blood to the head to open wider (dilate) and cause pain.
Migraines are a type of primary headache, meaning that they are not caused by an underlying medical condition. The precise cause of migraine headache is unknown; however, researchers suspect that it involves changes in the way the trigeminal nerve functions and certain brain chemical fluctuations.
Migraines cause moderate to severe pain. The pain may occur on one side or both sides of your head. Your pain may get worse with exercise or activity. The pain may pulse or throb. You may have nausea or vomiting. You may be sensitive to odors, light or sound. Some people experience an aura before a migraine begins. An aura may include seeing flashes or zigzags of light, feeling pins and needles in an arm or leg, or weakness or speech problems. Some people experience other symptoms (prodome) such as feeling tired, irritable, depressed, thirsty, or energetic or cravings for sweet food. Migraines can last from hours to days and may recur.
Your doctor can diagnose migraine headache by reviewing your medical history and symptoms. Your examination may include imaging tests, such as CT scans or MRI scans, to rule out more serious conditions. You may be asked to keep a record of your headaches for your doctor to review.
There are a variety of medications to help relieve the symptoms of migraines. Migraines are treated with over-the-counter or prescription pain-relieving medications. Your doctor may prescribe preventative medications as well.
Your doctor may prescribe medication to help prevent migraines from occurring. You may help prevent migraine headaches by:
Triggers and Risk Factors for Migraines:
Untreated migraines can be disabling and interfere with work or social activities.
BOTOX® injections, acupuncture, biofeedback and behavior therapy can be used to help prevent migraines from occurring. Recent research indicates that taking headache medications early, at the onset of the headache, can shorten the headache duration.
This information is intended for educational and informational purposes only. It should not be used in place of an individual consultation or examination or replace the advice of your health care professional and should not be relied upon to determine diagnosis or course of treatment.

The iHealthSpot patient education library was written collaboratively by the iHealthSpot editorial team which includes Senior Medical Authors Dr. Mary Car-Blanchard, OTD/OTR/L and Valerie K. Clark, and the following editorial advisors: Steve Meadows, MD, Ernie F. Soto, DDS, Ronald J. Glatzer, MD, Jonathan Rosenberg, MD, Christopher M. Nolte, MD, David Applebaum, MD, Jonathan M. Tarrash, MD, and Paula Soto, RN/BSN. This content complies with the HONcode standard for trustworthy health information. The library commenced development on September 1, 2005 with the latest update/addition on February 16, 2022. For information on iHealthSpot’s other services including medical website design, visit