The common cold is a viral infection of your upper respiratory tract (nose and throat).
Most adults are likely to have a common cold two to four times a year, while children may have a common cold as many as six to ten times annually.
A common cold is usually harmless and only lasts about a week or two.
More than 200 viruses can cause a common cold, and symptoms can vary greatly.
Symptoms can include:
- runny nose
- sore throat
- watery eyes