The more common cause of pain in the back of the head after a low fever is considered to be neurovascular headache symptoms caused after a low fever. It is recommended to take the body temperature during the fever, and if the body temperature is between 37-38°C, there can be no need to apply antipyretic drugs for the time being. Also observe whether there are symptoms of stiff neck or headache, nausea, vomiting, if these symptoms cannot be ruled out, it is recommended to go to the hospital for timely consultation and related examination. It is important to complete blood tests and inflammatory tests, and if necessary, lumbar cerebrospinal fluid tests. Only when the diagnosis is clear can symptomatic medication be administered, and while treating the condition, attention should be paid to observing changes in blood pressure, heart rate and other vital signs.