Hello
Welcome to health care magic
Unilateral
severe headache may be because of
migraine.
Ibuprofen drug helps to recover an attack of migraine but you will need some maientanance drugs too to prevent future attacks of migraine.
You need to visit physician for proper physical examination and certain investigations if needed.
If I were your treating doctor,I would recommend,
-Investigations like
CT scan head to rule out any underlying cause causing headache.
-NSAIDs like ibuprofen or
naproxen twice daily for couple of days to cover an attack of migraine pain.
-Maientanance drugs like sumitriptan/Rizatriptin for atleast 3 months as preventive prophylaxis against migraine attack.
-Avoid triggering factors like alcohol,caffeinated drinks,bright lights and noises.Whenever you feel you will get a headache,you need to rest in a calm dark room.
Hope this informatiin helps.
Feel free to ask any more doubt.