Thank you for posting your query.
The most likely cause of headaches in your husband is migraine.
Normal MRI of brain rules out most of the serious conditions of brain.
As of now, your husband should start preventive migraine medications (to prevent the recurrence of headaches). These medications include flunarizine
, beta blockers, etc. Those who do not respond to tablets, botox injections can be given.
In addition, for pain relief, he may take rizatriptan
Dr Sudhir Kumar MD DM (Neurology)