Pneumonia is inflammation (swelling) of the tissue in one or both of your lungs.
Our Health A-Z contains more information on Chest infection.
Croup is a childhood condition that affects the windpipe (trachea), the airways to the lungs (the bronchi) and the voice box (larynx).
Our Health A-Z contains more information on Croup.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.