Observational, open-label, non-randomized study on the efficacy of onabotulinumtoxinA in the treatment of nummular headache: The pre-numabot study

Abstract

It was found that after injecting onabotulinumtoxinA, the number of headache days per month was reduced in nummular headache patients. The number of intense headache days per month and acute treatment days were also lowered. No serious adverse events occurred during treatment.