Colds and flu

Updated 01 March 2019

Colds: course & prognosis

Most colds resolve on their own within a couple of days.

Most colds in healthy adults are mild, self-limiting and resolve on their own within 4 to 10 days.

In children, however, the virus itself can cause middle ear infections with associated complications. Infection with certain cold viruses such as respiratory syncytical virus (RSV) and parainfluenza virus can also cause pneumonia in infants.

In adults and older children with pre-existing medical conditions, a cold can precipitate worsening of the illness, such as an asthma attack in those with asthma or a flare-up of chronic bronchitis in smokers.

Seek medical attention if:

  • Your or your child’s symptoms have lasted longer than 10 days without improvement.
  • When symptoms that are severe or unusual are present (e.g. persistent fever or high fever in children, onset of shortness of breath or severe coughing, or poor intake of fluids or milk in infants).

Any infant younger than 3 months of age with a fever should be seen by a healthcare professional right away.

Reviewed by Cape Town-based general practitioner, Dr Dalia Hack. March 2019.


Ask the Expert

Flu expert

Dr Heidi van Deventer completed her MBChB (Bachelor of Medicine and Bachelor of Surgery) degree in 2004 at the University of Stellenbosch.
She has additional training in ACLS (Advanced Cardiac Life Support) and PALS (Paediatric Advanced Life Support) as well as biostatistics and epidemiology.

Dr Van Deventer is currently working as a researcher at the Desmond Tutu Tuberculosis Centre at the University of Stellenbosch.

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