Headaches are the most common reason people reach for over-the-counter painkillers. Most of the time, the right pill taken early enough does the job. But many people are using the wrong painkiller, taking it too late, or taking painkillers so often that the medication itself is causing headaches. At Acme Drug Mart, we help patients in Edmonton figure out what type of headache they are dealing with, which OTC treatment works best, and when the pattern means something needs to change.
Tension headache vs migraine
Most headaches fall into one of these two categories, and the distinction matters because the treatments are different.
Tension headache
The most common type. It feels like a tight band or steady pressure on both sides of the head, sometimes extending to the neck and shoulders. Key features:
- Mild to moderate intensity, uncomfortable but usually manageable
- Pressing or tightening quality, not throbbing
- Both sides of the head
- Does not get worse with routine physical activity like walking or climbing stairs
- No nausea, no sensitivity to light or sound (or very mild)
Tension headaches are often triggered by stress, poor posture, dehydration, skipped meals, or poor sleep. They typically respond well to simple painkillers and resolve within a few hours.
Migraine
Migraines are a neurological condition, not just a bad headache. They involve changes in brain chemistry and blood flow that produce distinctive symptoms:
- Moderate to severe intensity, often debilitating
- Throbbing or pulsating quality
- Usually one side of the head (but can be both)
- Gets worse with physical activity
- Nausea or vomiting
- Sensitivity to light, sound, and sometimes smells
- Lasts 4 to 72 hours if untreated
About one in four migraine sufferers experience an aura, visual disturbances like flashing lights, zigzag lines, or temporary blind spots, 15 to 60 minutes before the headache starts. Aura can also involve tingling in the hands or face, or difficulty finding words.
If your headaches are one-sided, throbbing, accompanied by nausea, or make you seek out a dark quiet room, they are likely migraines even if you have never been formally diagnosed.
Edmonton-specific triggers
Edmonton's climate creates conditions that are particularly relevant for headache and migraine sufferers:
- Rapid barometric pressure changes. Alberta chinook winds and fast-moving weather systems cause sudden pressure drops that are a well-documented migraine trigger. If your migraines cluster around weather changes, a headache diary tracking barometric pressure can confirm the pattern.
- Extreme temperature swings. Going from a heated building to minus 30 and back can trigger headaches in some people. Covering your forehead and sinuses when going outside in extreme cold can help.
- Dry indoor air. Edmonton winters mean months of heated indoor air with very low humidity. Dehydration from dry air is an underrecognized headache trigger. A humidifier and conscious water intake help.
- Reduced daylight. Short winter days can disrupt sleep patterns and circadian rhythms, both of which affect headache frequency. Vitamin D deficiency, common in Edmonton, has also been linked to increased headache frequency in some studies.
Choosing the right OTC painkiller
The painkiller aisle has dozens of options, but only a few are meaningfully different. Here is what works for each type:
For tension headaches
- Ibuprofen (Advil, Motrin) 400 mg. Generally the most effective first choice for tension headaches. Take with food to reduce stomach irritation. Avoid if you have kidney problems, stomach ulcers, or are on blood thinners.
- Naproxen (Aleve) 220 to 440 mg. Longer-lasting than ibuprofen (8 to 12 hours vs 4 to 6 hours), so a better choice if your headaches tend to come back. Same stomach and kidney cautions as ibuprofen.
- Acetaminophen (Tylenol) 500 to 1000 mg. A good alternative if you cannot take anti-inflammatories. Easier on the stomach but does not reduce inflammation. Do not exceed 4000 mg per day, and reduce the dose if you drink alcohol regularly or have liver concerns.
For migraines
- Acetaminophen + ASA + caffeine (Excedrin). This combination is the most effective OTC treatment for mild to moderate migraines. The caffeine enhances the pain relief and helps with absorption. Take it at the first sign of a migraine, waiting until the pain is fully established reduces effectiveness significantly.
- Ibuprofen 400 mg. Also effective for migraines, especially early in the attack. Take with an anti-nausea medication if nausea prevents you from keeping pills down.
- Naproxen 440 to 550 mg. Can work for migraines but is slower to take effect than ibuprofen.
The single most important principle for any headache medication: take it early. Treating a headache at the first sign of pain is dramatically more effective than waiting until it is severe. For migraines, treating during the aura phase (if you have aura) is ideal.
Medication overuse headache
This is the most important thing most headache sufferers do not know: using painkillers too frequently can cause headaches. It is called medication overuse headache (formerly rebound headache), and it creates a cycle that is hard to break without help.
The pattern works like this: you take a painkiller for a headache. It wears off. A withdrawal headache starts. You take another painkiller. Over time, the brain adapts to the regular presence of the medication and produces a headache whenever the drug level drops. The result is daily or near-daily headaches that never fully resolve.
The threshold varies by medication type:
- Simple analgesics (acetaminophen, ibuprofen, naproxen): risk increases when used 15 or more days per month
- Combination analgesics (acetaminophen + caffeine, Excedrin): risk increases at 10 or more days per month
- Codeine-containing products (Tylenol 1): risk increases at 10 or more days per month, and these are particularly prone to causing rebound
If you are using headache medication more than two to three days per week on a regular basis, you should talk to your pharmacist. Breaking the cycle typically requires stopping the overused medication for a period of weeks, which means the headaches get worse before they get better, ideally with a plan and sometimes a short-term preventive medication.
When headaches need a doctor
Most headaches are not dangerous, but some patterns require medical evaluation. See a doctor or go to the emergency department if you experience:
- Thunderclap headache. A sudden, severe headache that reaches maximum intensity within seconds, the worst headache of your life, with no buildup. This can indicate a brain bleed and is a medical emergency.
- Headache with fever and stiff neck. This combination can indicate meningitis.
- Headache after head injury. Even if the headache starts hours or days after a bump, it should be evaluated.
- Progressive headaches. Headaches that are getting gradually worse over weeks or months without a clear cause.
- New headache after age 50. A new headache pattern starting after 50 warrants investigation.
- Headache with neurological symptoms. Vision changes (beyond typical migraine aura), weakness on one side, confusion, difficulty speaking, or personality changes.
- Headaches that wake you from sleep. Headaches that consistently start during sleep or wake you up can indicate elevated intracranial pressure.
We will always tell you when your headache pattern needs a doctor rather than pharmacy management. That is part of the assessment we do when you come in asking for help.
Non-medication approaches
For people with frequent headaches, reducing reliance on painkillers is often as important as choosing the right one:
- Hydration. Dehydration is one of the most common and most overlooked headache triggers. Aim for six to eight glasses of water per day, more in Edmonton's dry winters.
- Regular sleep schedule. Both too little and too much sleep trigger headaches. Going to bed and waking up at consistent times, even on weekends, reduces frequency.
- Regular meals. Skipping meals drops blood sugar, which triggers headaches. Eat at regular intervals.
- Screen breaks. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. Eye strain from prolonged screen use is a major tension headache trigger.
- Magnesium supplementation. Magnesium at 400 to 500 mg daily has evidence for reducing migraine frequency. Magnesium glycinate or citrate is better absorbed than magnesium oxide. It takes two to three months of daily use to see benefit.
- Caffeine management. Caffeine is a double-edged sword. It can treat a headache (which is why it is in Excedrin) but regular heavy caffeine use followed by withdrawal on weekends causes weekend headaches. If you drink more than two to three cups of coffee daily, keep your intake consistent.
Talk to your pharmacist
If you are dealing with frequent headaches, going through too many painkillers, or not getting relief from what you have tried, walk into Acme Drug Mart. We will help you identify what type of headache you have, recommend the right OTC treatment, check for medication overuse, and tell you when it is time to see a doctor. Call (780) 443-0202 or stop by during regular hours.