Thank you for posting your query.
The most likely diagnosis in your son's case is migraine.
Migraine is hereditary and children can inherit it from parents.
Vasograine can cause relief from severe headaches in most people. If it is ineffective, one may use rizatriptan
For preventing the recurrence of headaches, one should use preventive migraine medications such as beta blockers, flunarizine
, topiramate, etc.
Please discuss these issues with his neurologist
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad