Trigeminal and cervical sensitization during the four phases of the migraine cycle in patients with episodic migraine.

In all phases of the migraine cycle, patients with EM show signs of sensitization in the trigeminocervical area, with patients with the most prominent sensitization in the ictal phase. Signs of widespread sensitization were consistent in the preictal phase in patients with EM and in the subgroups of patients with EM with the longest disease duration and more usage of symptomatic drugs.