The cluster headache is a primary headache characterized by attacks of unilateral pain associated with ipsilateral cranial autonomic features. These attacks recur in clusters during the years alternating with periods of complete remission. and their onset is often during the night. This annual and nocturnal periodicity hides a strong and mysterious link among CH. https://www.bekindtopets.com/save-now-Rx-Chorulon-HCG-for-Cattle-save-extra/