Add to ORKGSurvey on the use of complementary and alternative medicine among patients with headache syndromes The study of von Peter et al. (1) reported in this issue demonstrates once again how unwise it would be for physicians to ignore the rising tide of interest and use of complementary and alternative therapies amongst our patients. On this occasion, a high usage of complementary and alternative medicine (CAM) has been demonstrated in a population attending a specialist headache clinic, but the observation has been made amongst general neurological patients (2) and famously, in a wider, more generally representative population (3). The authors discuss a number of reasons for physicians to take note of these findings, including th