If the headache is simple, it may be caused by vascular neuropathic headache, which needs to be combined with the accompanying symptoms of the headache and the location of the headache. If the headache is severe, accompanied by vomiting and weakness of limbs, you should be alert to the occurrence of stroke. If the headache is accompanied by nausea, vomiting and fever, it is necessary to rule out that it is caused by cold, viral encephalitis or increased blood pressure. So it is best to take the temperature and blood pressure, if there is no problem, you can take ibuprofen and other drugs for treatment, which can significantly relieve the symptoms.