It is not a simple question to answer.headache has thousands of reasons and what we are interested in is to exclude some dangerous conditions of brain.Headaches
may be temporary or a longstanding problem.You need to maintain a headache diary and this helps your neurologist
to decide the type of headache and its treatment.Most of the headaches are relieved by some painkillers.But when they are associated with fever,vomiting,blurring of vision,head injury
,loss of consciousness
,fits etc,you need further clinical examination and investigations.