What is a headache?
The brain itself does not have pain receptors so the pain you feel actually comes from the scalp, face or tissue lining the brain (meninges). Muscles and blood vessels in the head can expand or contract in response to a variety of triggers or stimuli, putting pressure on surrounding nerves, which send the messages to your brain that you interpret as a headache.
Causes and triggers?
What type of headache do you get?
This is what most people mean when they have a headache and it is caused by contracted muscles in your head, neck, shoulders or jaws. You may have come home after a stressful day at work with a pressing pain all round your head as though your head was in a vice, and your neck and shoulders may feel tight. You recognise this regular pattern because a tension headache can happen often, although it usually only lasts a few hours; longer if untreated, but it can also come and go over a few days. It may persist and become chronic, indicative of another problem such as eye trouble, depression or overuse of painkillers used to prevent headaches (rebound headache).
If you have ever had a migraine you will know the difference. It is a very distinctive throbbing headache, usually on one side and is caused by blood vessels contracting and then expanding. The first sign that a migraine is about to hit is called an aura (although you can have migraine without aura), usually characterised by visual disturbances like flashing lights, blurriness or zigzags moving from your central to peripheral vision, sometimes accompanied by numbness or tingling. This is when the artery is contracting. You may feel nauseous, become sensitive to light or movement and then a severe headache will force you to lie down and be still until it passes, which can be anything from hours to a few days. Vomiting is common at this stage.
This is a much less common form of headache and affects predominately men. They come as a “cluster” of headaches over a period of a few days to weeks, often in the same season each year. Each headache is in the same spot, such as a sharp pain around one eye, and is sometimes accompanied by distinctive symptoms like watering and redness of the affected eye, drooping or swollen eyelid and small pupil. You may also feel anxious and have disturbed sleep. It is thought that arteries in the head become inflamed, which triggers nerves behind the eye to send pain messages to the brain. Also abnormal activity in the brain control centre (hypothalamus) may be involved.
Prevention and treatment
Most headaches are not related to anything else and will disappear with pain relief medication. If you have persistent headaches and are not sure of the cause you should seek medical advice.
1. Identify your headache
Try to identify what type of headache you’ve got or likely causes. Have you had a bang on the head? Do you have trouble reading? Is your nose blocked? Do you have migraine symptoms? These may help identify specific treatments.
A few practical steps can help reduce headaches, especially those associated with lifestyle and stress. Avoid getting intoxicated. Stop smoking. Reduce your stress in life and get out and exercise. Get a good night’s sleep.
Look for patterns and causes, monitoring yourself and making notes; then you can take steps to avoid triggers or treat the headache. These questions may help.
3. When to visit your doctor
While most headaches are not associated with any disease, some features may indicate an underlying health problem. If you think you need prescription medicine, seek medical help and be prepared to discuss your symptoms and medical history. Symptoms of a more serious condition may include:
4. Getting pain relief
You can obtain most simple pain relief medicines directly from your pharmacy, such as paracetamol, aspirin and some non-steroidal anti-inflammatory drugs (NSAIDS). Some migraine medication is also available over-the-counter, however for stronger medication you will need a prescription. For rapid relief of a migraine or cluster headache, you may be given medication by injection or nasal spray when you visit a doctor.
5. Natural remedies
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