Symptom guide

Cold

A runny or blocked nose, sneezing, and sore throat.

Take note: Most mild symptoms improve, but it is important to notice changes and warning signs.

About this symptom

The common cold is a viral upper-respiratory infection. Symptoms usually settle gradually with rest, fluids, and supportive care.

Common causes

  • Common cold viruses
  • Exposure to respiratory viruses
  • Seasonal changes and close contact with others

Gentle self-care

  • Rest and stay hydrated.
  • Use saline nasal spray or steam from a warm shower for comfort.
  • Wash hands often and avoid sharing drinks while unwell.

When to seek medical care

  • Shortness of breath, chest pain, or blue/grey lips.
  • Symptoms that become severe or do not improve as expected.
  • Extra caution is needed for infants, older adults, and people with chronic conditions.