There are several reasons why patients always have headache: 1, the most common clinical functional headache, such as migraine, neurological headache, tension headache, the patient in a bad night’s sleep, fatigue, nervousness, emotional stimulation or eat spicy, stimulating food easily lead to headache attacks. This kind of patients can get rapid improvement of symptoms after taking painkillers, don’t worry too much.2. If the patient always has headache and the symptoms are getting worse gradually, and the effect of painkillers is not obvious, it is considered that it is caused by intracranial tumors, intracranial space occupation and other serious diseases, and it is recommended that the patient improve the head CT or head MRI to make it clear.