A headache on one side of the head accompanied by eye swelling and pain is considered to be a cluster headache. Cluster headache attacks are more frequent and severe, mostly due to recent excessive tension, overwork, insomnia, late night and other reasons. Patients are advised to relax and take pain medication, such as oral ibuprofen tablets or lexapro tablets, to relieve pain. Oral medication to improve blood circulation in the brain can also be taken, such as Zhengtian Pill and Compound Yangjiao Punch. During the period of headache, patients are advised not to eat spicy and stimulating food or drink alcohol, which will aggravate the headache symptoms.