A cough is a common symptom that occurs in a range of different conditions. Some, including pneumonia and asthma, require medical attention. It is best to see a doctor for coughs that persist for longer than 3 weeks, as they may indicate something more serious.
A cough occurs when the lungs or airways become irritated. The most common cause of a cough is the common cold, which does not usually require medical attention.
However, coughs that occur with other symptoms, such as dizziness, may require a trip to doctor. This is particularly important with more serious symptoms, such as coughing up blood.
This article will discuss when to see a doctor about a cough, as well as some possible causes of a persistent cough.