Pain in the right half of the head may accompany migraine, paroxysmal hemicrania, and some other types of primary cephalalgia. It is observed in the syndrome of the vertebral artery, a number of diseases of the brain, ENT organs and the cervical spine. The character is pulsating, breaking, pressing, bursting, dull, sharp, weak, moderate, intense. Diagnosis is based on the results of the conversation, objective and instrumental studies. Symptomatic and etiopathogenetic treatment is carried out using NSAIDs, analgesics, triptans, other drugs, non-drug methods. Operations are sometimes shown.