Common Cold

A mild viral infection of the nose and throat, causing a runny nose, sneezing and sore throat. It usually gets better within a week or two.

InfectionBreathingLast updated: 21 October 2026

Quick Summary

Primary Symptoms

Runny or blocked nose, sneezing, sore throat, cough, mild headache and sometimes a mild fever.

Common Treatments

Rest, fluids, steam inhalation and simple medicines for symptoms. Antibiotics don't help.

Risk Factors

Close contact with people who have colds, young children at school or nursery, and touching the face after touching surfaces.

Overview

The common cold is caused by many different viruses, most often rhinoviruses. It spreads through droplets and by touching contaminated hands or surfaces.

Adults typically get two to four colds a year and children more. Colds get better on their own, usually within 7 to 10 days.

Symptoms

Runny or blocked nose

With sneezing, often the first signs.

Sore throat

Usually mild and improves after a few days.

Cough

May last a little longer than other symptoms.

Mild headache and tiredness

Sometimes with a slight fever.

Causes & Risk Factors

Biological Causes

Infection of the nose and throat with one of more than 200 cold viruses.

Key Risk Factors

  • Age Young children catch more colds.
  • Season Colds are more common in cooler and rainy months.
  • Close contact Schools, offices and crowded places.

Management & Treatment

01. Rest and fluids

Rest and drink warm fluids.

02. Symptom relief

Paracetamol for aches and fever, saline nose drops, steam and honey for cough (not for babies under one year).

03. See a doctor if needed

If symptoms last more than three weeks, get worse, or you have difficulty breathing.

Frequently Asked Questions

Do antibiotics help a cold?
No. Colds are caused by viruses, so antibiotics don't work and can cause side effects.
How can I avoid spreading it?
Wash hands often, cover coughs and sneezes, and stay home when unwell.
Is it a cold or flu?
Flu starts suddenly with high fever and aches; colds are milder.

Sources and further reading

Last updated 21 October 2026. For more detail, see these trusted health organisations.