Fifteen days a month is a category, not a figure of speech.

WHEN IT BECOMES CHRONIC

Chronic migraine is 15 or more headache days a month for more than three months. At least eight of those days have migraine features. At that line, botulinum toxin, CGRP-targeted preventives and occipital nerve blocks come onto the table.

That number is not a figure of speech. It is a formal category. It changes what is worth trying. And it is the group most likely to have been managed with abortives alone for years. Abortives are drugs that stop an attack once it starts.

What is chronic migraine, and why does the number matter?

Chronic migraine is 15 or more headache days a month for more than three months. At least eight of those days have migraine features. Why know the number? It is the line for treatments that are not offered below it. People sitting at 18 days a month often do not know they qualify.

What is causing my chronic migraines?

Episodic migraine rarely turns chronic overnight. The known drivers of that shift are worth naming, because most can be changed. They are rising acute medication use, untreated or poorly treated attacks, obesity and metabolic dysfunction, snoring and sleep apnea, depression and anxiety, and stress that will not let up. Medication overuse is the single most common driver and the easiest to reverse.

The mechanism under all of them is central sensitization. The pain system lowers its own threshold each time it fires, so attacks get easier to start. Metabolic inflammation and insulin resistance feed that directly. That is why this practice checks bloodwork rather than treating the head alone. The third input is the one that makes people give up. It is a life with no window to recover in. So every attack gets medicated early, because losing the day is not an option.

Is chronic migraine for life?

Chronic migraine is not a one-way door. A large share of people go back to episodic when the drivers are addressed. That is most true when medication overuse is unwound and sleep is steadied. It is worth saying plainly, because the label sounds permanent, and people stop looking for treatment once they have been given it.

Frequently asked questions

What counts as a headache day?

Any day with head pain. That includes days you treated early and it did not fully develop. Leaving out days you treated well is the most common counting error. It hides the diagnosis.

Can chronic migraine go back to episodic?

Yes, often. It is most likely when overuse is unwound and sleep is steadied. The label is not a life sentence.

The mechanism is covered in what chronic headache means.

Do I qualify for Botox?

It is specifically indicated for chronic migraine at 15 or more headache days a month. Whether it is right for you is a clinical call. See what it involves.

What comes first?

The two counts, then unwinding any overuse, then judging preventives. Start here.

Can chronic migraines be treated?

Yes. Reaching 15 headache days a month opens options that are not offered below it. They are botulinum toxin, CGRP-targeted preventives and occipital nerve blocks. Unwinding any medication overuse comes first. That is because every other treatment is judged unfairly on top of it. Many people sitting at 18 days a month do not know they qualify for any of this.

How do you recover from chronic migraine?

Address the drivers, starting with the easiest to reverse. Count headache days and medication days. Unwind any medication overuse. Steady your sleep. That is when a large share of people move back to episodic migraine. Then work on the other inputs that can change. Those include snoring and sleep apnea, metabolic dysfunction and stress that will not let up. Judge preventives after that.

Am I chronically ill if I have chronic migraines?

Chronic migraine is a formal diagnosis: 15 or more headache days a month for more than three months. The label is real. But it describes how often the headaches come now, not a fixed state. It is not a one-way door. Many people return to episodic migraine once medication overuse is unwound and sleep is steadied.

Next steps

• Medication overuse
• Botulinum toxin
• Preventive options
• What “chronic” means
• Keeping the diary