COVID and headache: what should you know?

Headache can occur with COVID-19, but it is not specific to the infection and may have several other causes. Fever, congestion, poor sleep, dehydration, and the body’s immune response can all contribute during an infection. A headache by itself cannot confirm COVID-19; consider the full symptom pattern and current testing advice.

COVID-19-related headache may occur with fever, fatigue, sore throat, cough, or muscle aches. Pressure around the face can also come from nasal inflammation, while heat exposure, low fluid intake, migraine, or anxiety can produce headache without COVID-19. The direction matters: COVID-19 can present with headache, but most headaches are not evidence of COVID-19. New symptoms after travel or outdoor heat exposure deserve their own assessment.

Rest in a cool, quiet room, drink fluids regularly, and avoid strenuous activity while unwell. Follow local advice about testing, staying home, and reducing spread if infection is possible. Use only pain relief that is suitable for you and follow the label or clinician’s instructions; check before taking it if you have kidney, liver, stomach, or pregnancy-related concerns. Note the headache’s onset, location, severity, fever, neck symptoms, and response to rest.

Seek emergency care for a sudden, extreme headache; weakness on one side; trouble speaking; fainting; a seizure; new confusion; vision loss; or difficulty breathing. Urgent review is also needed for headache with a stiff neck and fever, repeated vomiting, a rash, severe dehydration, or worsening after a head injury. Contact a clinician if the headache persists, repeatedly returns, or is unusual for you.

Ask whether you need a COVID-19 test or assessment for sinus, migraine, heat-related, or other causes. Tell the clinician about medicines, pregnancy, recent travel, fluid intake, and any neurological symptoms. Ask which pain reliever is appropriate for you, how to monitor symptoms at home, and exactly when to seek urgent help.