Pain in the left eye and pain in the left side of the head are considered to be caused by migraine. Migraine is a relatively common type of primary headache in clinical practice. It is a recurrent, moderate to severe throbbing pain in the head, and may be accompanied by pain and discomfort in one eye, which is an eye discomfort caused by migraine involvement. Patients can take some non-steroidal oral analgesics symptomatically to relieve headache, such as aminoglutethimide tablets, ibuprofen extended-release capsules, and indomethacin tablets. In the case of moderate to severe migraine, treprostatin and ergotamine preparations can be given to relieve the headache. Patients can also usually take oral flunarizine hydrochloride capsules to prevent the occurrence of migraine. Patients should also pay attention to their lifestyle to avoid some triggering factors of migraine. Patients should participate in more physical activities to enhance their physical fitness, avoid straining, and ensure good sleep, and avoid cheese, strong tea, strong coffee and other products.