There are numerous potential causes, including migraine, a head injury, or a viral illness, such as COVID-19. Anyone who has a headache for days that does not respond to over-the-counter (OTC) pain relief medication should seek guidance from a doctor.
Disclaimer:
The content is intended to augment, not replace, information provided by your clinician. It is not intended nor implied to be a substitute for professional medical advice. Reading this information does not create or replace a doctor-patient relationship or consultation. If required, please contact your doctor or other health care provider to assist you in interpreting any of this information, or in applying the information to your individual needs.
