If you're migraining and can't read too good, this video summarizes the info: New Migraine Prevention Goals by the IHS (2025)

The International Headache Society says no more to a blanket 50% reduction in migraines counting as "successfully treated." Instead, treatment success should be measured by migraine days per month, with more than 6 days considered "insufficient control."

Excerpts from the "Setting goals of migraine burden while on treatment" section:

Migraine Freedom. This is defined as the complete elimination of days with migraine or moderate-to-severe headache, ideally over a period of three months.

Optimal Control. This is defined as less than four days with migraine or moderate-to-severe headache per month for three months, with a satisfactory response to acute treatment, defined as pain-freedom within two hours from the intake.

Modest Control. This is defined as four to six days with migraine or moderate-to-severe headache per month. In this case, disability may persist, but this level of control may represent a meaningful improvement especially for those with high frequency episodic migraine (10–14 headache days per month) or CM (>14 headache days per month) before treatment.

Insufficient Control. This is defined as more than six days with migraine or moderate-to-severe headache per month. At this level, migraine imposes a substantial burden and may require frequent use of acute medications.