Sore Throat

Checked against current published health guidance — last reviewed 2026-09-22. See how we check.

Most sore throats are caused by viral infections like colds or flu and ease within about a week with simple remedies. See a pharmacist or GP if it's severe, lasts longer than a week, or comes with difficulty swallowing or breathing.

Overview

A sore throat is usually part of a viral illness — a cold, flu, or laryngitis — causing pain, scratchiness, or irritation, sometimes with difficulty swallowing.

Less often, a sore throat is caused by a bacterial infection (such as strep throat) or by non-infectious causes like acid reflux, allergies, or dry air.

What may help

When to see a pharmacist or GP

When it could be an emergency

If any of these apply, don't wait — check Red Flags for your country's emergency number, or go straight to your nearest emergency department.

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Common questions

Is a sore throat always a sign of infection?

Usually, but not always — smoking, dry air, shouting, acid reflux, and allergies can all cause a sore throat without any infection being involved.

Do I need antibiotics for a sore throat?

Most sore throats are viral and don't need antibiotics. A pharmacist or GP can assess whether a bacterial cause (like strep throat) is likely and antibiotics are appropriate.

How can I tell if it's tonsillitis?

Tonsillitis often causes visibly red, swollen tonsils, sometimes with white patches, along with a fever and difficulty swallowing — a pharmacist or GP can confirm and advise on treatment.

Read more on the NHS website →

General information only, last checked 2026-09-22 — not medical advice and not a diagnosis. This page doesn't cover every cause or every person's situation; for anything specific to you or someone in your care, speak to a pharmacist, GP, or other qualified professional. Content is checked against current published guidance from official public health sources — see how we check. Be Health Wise is part of the Be Wise family of apps.