Patients with throbbing pain on the left side of the head mainly consider the following causes: First, it should be considered a migraine attack. Migraine is a very common functional headache in clinical practice, and patients will repeatedly experience throbbing and throbbing pain on one side of the head, which is consistent with the frequency of the pulse. The pain level is moderate to severe and may be accompanied by nausea, vomiting, photophobia, and phonophobia in severe cases, and usually occurs when the patient is emotionally stressed, tired, or poorly rested. Oral pain medications can be taken to relieve the pain, such as aminoglutethimide tablets, ibuprofen extended-release capsules, acetaminophen, indomethacin and other drugs for relief. Second, patients with throbbing pain on the left side of the head may also have neuropathic headache, which may occur after catching cold, cold or nerve stimulation, and can take oral carbamazepine symptomatically to relieve the pain.