Viral vs Bacterial Sore Throat

By the AllHealth UK editorial teamLast reviewed 26 August 2026Next review due 26 February 2027Compiled from published NHS and NICE guidance. Not reviewed by a clinician.

Is my sore throat viral or bacterial?

Most sore throats are viral, and the NHS says antibiotics will not usually relieve your symptoms or speed up recovery. A cough, runny nose and hoarse voice point to a virus. No cough, a high temperature, swollen neck glands and white patches on the tonsils lean bacterial — but no sign is reliable at home. In England a pharmacist can assess and treat this.

Immediate action required: call 999 or go to A&E if

Difficulty breathing, or you cannot swallow
Drooling — a sign of not being able to swallow
A high-pitched sound when breathing in (stridor)
Severe symptoms that are getting worse quickly

If you are weighing up whether it is bad enough to call, that is itself a reason to call. Nobody is annoyed by a 999 call that turns out to be the less serious of the two.

Viral Sore Throat compared with Bacterial (Strep) Sore Throat
Feature	Viral Sore Throat	Bacterial (Strep) Sore Throat
Typical signs	A cough alongside the sore throat Runny or blocked nose Hoarse voice Mild or no temperature Builds gradually with cold symptoms	Sudden, severe pain on swallowing No cough High temperature Swollen, tender glands in the neck White patches on swollen tonsils A rash that feels rough, like sandpaper — this can be scarlet fever and needs same-day antibiotics
How long it lasts	Normally better by itself within a week	Also usually about a week; antibiotics are only given if a clinician judges it bacterial
What helps	Paracetamol or ibuprofen, warm salt-water gargles, lozenges or anaesthetic spray from a pharmacist	Same self-care first. In England a pharmacist can assess a sore throat and supply antibiotics under Pharmacy First (age 5 and over); Scotland, Wales and Northern Ireland run their own pharmacy schemes. Call 111 or ask for an urgent GP appointment if you have a very high temperature or feel hot, cold or shivery, have signs of dehydration, or have a weakened immune system. Stay off work or school for 24 hours after starting antibiotics.
What to do	Self-care at home	See a GP

Sources and further reading

This page was written from the following published guidance. All links checked 26 August 2026.

What to do next

Not sure whether this needs a doctor? These are your options, cheapest and fastest first.