Hello dear Understand your concern. Cluster headache is neurological disorder characterized by recurrent headache , mostly one one side of attack around the eye. It is associated with nausea, vomiting, runny nose, cunjuctivitis, photophobia, muscle spasm and photophonia. Exact cause is not known but following factor are associated: Family history Genetic predisposition Smoking and alcohol consumption Hypothalamus pathology Vascular pathology: dilation of blood vessels lead to more blood in brain and more pressor on trigeminal nerve produce headache. For exact diagnosis consult the neurologist and get the necessary investigation like MRI, CBC, ESR, Refraction, blood sugars, hormone profile. Advice: Keep your headache diary: avoid triggering factor Verapamil, prednisolone and topiramate used to prevent attack. For attack Tablet/Injection tramadol Oxygen inhalation Sumatriptan : can be given subcutaneously or intranasaally Other drugs like opioid and octreotide can be used in non responding case. Start exercising Take healthy diet Avoid excessive light and noise Avoid smoking an alcohol Sleep at least 8 hours Accupuncture therapy may be useful Hope this may help you. Best regards Dr. Sagar