A headache starts, you take a tablet, and the pain eases. A day or two later it returns, and you take another. If this has become your routine, the painkillers themselves may be keeping the headaches going. This is called medication-overuse headache (MOH), also known as rebound headache.
What is Medication-Overuse Headache?
Medication-overuse headache is a headache that develops or worsens because of frequent use of headache medicines. It mostly affects people who already have migraine or tension-type headaches. It isn’t caused by an occasional painkiller. The problem is how often you take them.
How Does It Develop?
Researchers believe frequent medication changes how the brain’s pain-control systems work. The brain becomes more sensitive to pain, and each dose wears off sooner. The headache returns, often stronger, so you take another dose, and the cycle continues.
As a general guide, MOH can develop when, for more than three months, you take:
- Simple painkillers (such as paracetamol or anti-inflammatory tablets) on 15 or more days a month
- Combination painkillers, triptans or opioid-containing medicines on 10 or more days a month
An easier rule: if you need a painkiller for headache more than 2-3 days a week, it’s time to get evaluated. Many people don’t realise that over-the-counter “headache tablets”, especially those combined with caffeine, count towards this.
Warning Signs to Watch For
- Headache on most days, often present when you wake up
- Pain returning as soon as the medicine wears off
- The same tablet working less well than before
- Needing higher or more frequent doses
- Keeping extra tablets “just in case”
- Irritability, tiredness or difficulty concentrating
The Migraine Connection
Migraine attacks are the most common starting point. Triggers such as changing weather or weekend routine changes can make attacks more frequent. That makes it tempting to reach for painkillers more often, which can tip occasional migraines into a daily pattern. Treating the underlying migraine properly is the best way to avoid this.
How is it Treated?
Medication-overuse headache is treatable. A neurologist will usually:
- Confirm the diagnosis with a detailed headache history, a neurological examination and, if needed, imaging such as MRI.
- Reduce or stop the overused medicine under medical guidance. Don’t stop suddenly on your own, especially if your tablets contain opioids or sedatives.
- Start preventive treatment for the underlying migraine or headache disorder.
- Support lifestyle changes, such as regular sleep, meals, hydration and stress management.
Be prepared for the headache to feel worse for a few days to a couple of weeks after the overused medicine is reduced. Most people then improve, with fewer headaches and better response to treatment. You can read more about how migraine is diagnosed and managed on our migraine and headache treatment page.
When to See a Neurologist
Consult a neurologist if:
- You use painkillers for headache more than 2-3 days a week
- You have daily or near-daily headaches
- Your usual medicine has stopped working
- Your headache pattern has changed
Seek emergency care immediately if you have a sudden, severe headache along with weakness, facial drooping, slurred speech, confusion, vision loss, or fever with a stiff neck. These can be signs of a stroke or another emergency.
Break the Cycle with Expert Help
If you’re stuck in a headache-painkiller cycle, a headache specialist in Ahmedabad can help you get out of it safely. At Setu Neurology Clinic, Dr. Vishal Jogi, a neurologist in Ahmedabad with 15+ years of experience, carefully evaluates your headache pattern and builds a plan that reduces both your headaches and your dependence on painkillers.
If you’re looking for a neurologist in Memnagar or a headache specialist in Memnagar, contact us today.