A severe headache with throat pain can be caused by a viral illness, flu/COVID-19, or strep throat, but it can also signal a more serious infection. Do not treat it as routine at home if the headache is severe or unusual.
Seek urgent medical care today, or emergency care now, if there is any of:
- Fever with stiff neck, rash, confusion, drowsiness, repeated vomiting, or sensitivity to light
- Sudden “worst-ever” headache, fainting, seizure, weakness, facial droop, or trouble speaking
- Trouble breathing, drooling, inability to swallow liquids, muffled voice, or swelling of the neck/throat
- A severe one-sided throat pain, difficulty opening the mouth, or worsening symptoms
- Pregnancy, immune suppression, or age under 3 months
These features need assessment to rule out meningitis, a deep throat infection such as a peritonsillar abscess, or another secondary headache. Textbook guidance notes that fever, headache, sore throat, and tender neck glands can occur with streptococcal pharyngitis, which needs testing before antibiotics are prescribed. Quick Compendium of Clinical Pathology, 5th ed., p. 243.
If none of those warning signs apply and the person is alert, breathing normally, and able to drink:
- Rest, drink frequent fluids, and use warm salt-water gargles.
- For an adult, paracetamol/acetaminophen 500-1,000 mg every 6-8 hours as needed, maximum 3,000 mg/day without clinician advice. Avoid or seek advice first with liver disease, heavy alcohol use, or other products containing acetaminophen.
- Or ibuprofen 200-400 mg every 6-8 hours with food, maximum 1,200 mg/day over the counter. Avoid if there is a stomach ulcer/bleeding history, kidney disease, blood thinner use, NSAID allergy, or pregnancy.
- Avoid giving aspirin to anyone under 19 years.
- Do not start leftover antibiotics. A throat swab or rapid strep test may be needed if fever, pus on tonsils, swollen tender neck nodes, and no cough are present.
If the headache remains severe, lasts more than 24 hours, or the throat pain is worsening, arrange same-day medical evaluation.