Pain on one side of the head is most often considered to be a migraine, which is the more common type of primary headache in clinical practice, with episodes characterized by moderately severe throbbing pain. The pain is usually on one side of the head, either on the left or right side of the head. Attacks may be preceded by triggers, such as environmental stimuli, sound and light stimuli, emotional factors, lack of sleep, etc. that cause migraine attacks. Migraine headache usually has a family genetic history and tends to be clustered in families, which may be related to endocrine and metabolic factors. Some diets, such as chocolate, wine, etc., may trigger migraine attacks. For migraine attacks, you can take oral pain medication to relieve headache, and the effective one is zolmitriptan tablets.