10 Flu Symptoms


As the body fights against the virus, the temperature increases. This results in a vasodilatation of blood vessels throughout the body, including the brain, which results in a headache. Another reason may be sinusitis that often develops during the influenza infection (particularly in people who already suffer occasional episodes of sinusitis).

In the absence of sinusitis, as the body temperature drops, the headache decreases. A persistent headache that intensifies when coughing is a characteristic of sinusitis. Rarely, some patients report a severe headache accompanied by a stiff and painful neck. This symptom requires immediate medical attention.

Headache. Photo by Lyashenko

About Dr Alex Grbovic 4 Articles
Dr Aleksandar Grbović is a medical doctor from the Belgrade University, Faculty of Medicine. He is passionate about promoting medicine by bridging the gap between the patient’s and doctor’s point of view. Currently working in the biggest Occupational Medicine Institute in Serbia and attending the Radiology residency program.


The content of this website is not intended to be taken as a replacement for professional medical advice, care, diagnosis or treatment of a doctor, dietician, nutritionist or fitness instructor. If you experience any medical symptoms you should consult your doctor immediately for proper diagnosis and treatment.