How is Migraine Headache Treated?
During the Stone Age, pieces of a headache sufferer's skull
were cut away with flint instruments to relieve pain. Another
unpleasant remedy used in the British Isles around the ninth Century
involved drinking "the juice of elderseed, cow's brain, and
goat's dung dissolved in vinegar." Fortunately, today's headache
patients are spared such drastic measures.
Drug therapy, biofeedback training, stress reduction, and elimination
of certain foods from the diet are the most common methods of
preventing and controlling migraine and other vascular headaches.
Joan, the migraine sufferer, was helped by treatment with a combination
of an antimigraine drug and diet control.
Regular exercise, such as swimming or vigorous walking, can also
reduce the frequency and severity of migraine headaches.
During a migraine headache, temporary relief can sometimes be
obtained by applying cold packs to the head or by pressing on
the bulging artery found in front of the ear on the painful side
of the head.
Drug therapy. There are two ways to approach the treatment of
migraine headache with drugs: prevent the attacks, or relieve
symptoms after the headache occurs.
For infrequent migraine, drugs can be taken at the first sign
of a headache in order to stop it or to at least ease the pain.
People who get occasional mild migraine may benefit by taking
aspirin or acetaminophen at the start of an attack. Aspirin raises
a person's tolerance to pain and also discourages clumping of
blood platelets. Small amounts of caffeine may be useful if taken
in the early stages of migraine. But for most migraine sufferers
who get moderate to severe headaches, and for all cluster headache
patients (see section "Besides Migraine, What Are Other Types
of Vascular Headaches?"), stronger drugs may be necessary
to control the pain.
Several drugs for the prevention of migraine have been developed
in recent years, including serotonin agonists which mimic the
action of this key brain chemical. One of the most commonly used
drugs for the relief of classic and common migraine symptoms is
sumatriptan, which binds to serotonin receptors. For optimal benefit,
the drug is taken during the early stages of an attack. If a migraine
has been in progress for about an hour after the drug is taken,
a repeat dose can be given.
Physicians caution that sumatriptan should not be taken by people
who have angina pectoris, basilar migraine, severe hypertension,
or vascular, or liver disease.
Another migraine drug is ergotamine tartrate, a vasoconstrictor
which helps counteract the painful dilation stage of the headache.
Other drugs that constrict dilated blood vessels or help reduce
blood vessel inflammation also are available.
For headaches that occur three or more times a month, preventive
treatment is usually recommended. Drugs used to prevent classic
and common migraine include methysergide maleate, which counteracts
blood vessel constriction; propranolol hydrochloride, which stops
blood vessel dilation; amitriptyline, an antidepressant; valproic
acid, an anticonvulsant; and verapamil, a calcium channel blocker.
Antidepressants called MAO inhibitors also prevent migraine.
These drugs block an enzyme called monoamine oxidase which normally
helps nerve cells absorb the artery-constricting brain chemical,
serotonin. MAO inhibitors can have potentially serious side effects—particularly
if taken while ingesting foods or beverages that contain tyramine,
a substance that constricts arteries.
Many antimigraine drugs can have adverse side effects. But like
most medicines they are relatively safe when used carefully and
under a physician's supervision. To avoid long-term side effects
of preventive medications, headache specialists advise patients
to reduce the dosage of these drugs and then stop taking them
as soon as possible.
Biofeedback and relaxation training.
Drug therapy for migraine is often combined with biofeedback
and relaxation training. Biofeedback refers to a technique that
can give people better control over such body function indicators
as blood pressure, heart rate, temperature, muscle tension, and
brain waves. Thermal biofeedback allows a patient to consciously
raise hand temperature. Some patients who are able to increase
hand temperature can reduce the number and intensity of migraines.
The mechanisms underlying these self-regulation treatments are
being studied by research scientists.
"To succeed in biofeedback," says a headache specialist,
"you must be able to concentrate and you must be motivated
to get well."
A patient learning thermal biofeedback wears a device which transmits
the temperature of an index finger or hand to a monitor. While
the patient tries to warm his hands, the monitor provides feedback
either on a gauge that shows the temperature reading or by emitting
a sound or beep that increases in intensity as the temperature
increases. The patient is not told how to raise hand temperature,
but is given suggestions such as "Imagine your hands feel
very warm and heavy."
"I have a good imagination," says one headache sufferer
who traded in her medication for thermal biofeedback. The technique
decreased the number and severity of headaches she experienced.
In another type of biofeedback called electromyographic or EMG
training, the patient learns to control muscle tension in the
face, neck, and shoulders.
Either kind of biofeedback may be combined with relaxation training,
during which patients learn to relax the mind and body.
Biofeedback can be practiced at home with a portable monitor.
But the ultimate goal of treatment is to wean the patient from
the machine. The patient can then use biofeedback anywhere at
the first sign of a headache.
The antimigraine diet. Scientists estimate that a small percentage
of migraine sufferers will benefit from a treatment program focused
solely on eliminating headache-provoking foods and beverages.
Other migraine patients may be helped by a diet to prevent low
blood sugar. Low blood sugar, or hypoglycemia, can cause headache.
This condition can occur after a period without food: overnight,
for example, or when a meal is skipped. People who wake up in
the morning with a headache may be reacting to the low blood sugar
caused by the lack of food overnight.
Treatment for headaches caused by low blood sugar consists of
scheduling smaller, more frequent meals for the patient. A special
diet designed to stabilize the body's sugar-regulating system
is sometimes recommended.
For the same reason, many specialists also recommend that migraine
patients avoid oversleeping on weekends. Sleeping late can change
the body's normal blood sugar level and lead to a headache.