Revue Neurologique 2021 Sep;177(7):725-733. G Demarquay, X Moisset, M Lantéri-Minet, S de Gaalon, A Donnet , P Giraud, E Guégan-Massardier, C Lucas, J Mawet, C Roos, D Valade, A Ducro Abstract The French Headache Society proposes updated French guidelines for