9 Symptoms Of A Deadly Childhood Respiratory Disease

4. Cough

When something irritates your throat or airways, your body responds with a cough. Nerves are stimulated by an irritation, which sends a message to your brain. To force out the irritant, the brain instructs muscles in your chest and abdomen to push air out of your lungs. Coughing on occasion is normal and healthy. A cough that lasts for several weeks or produces yellow or bloody mucus may signal a medical problem that requires treatment. Coughing can be rather powerful at times. Coughing over an extended period of time might irritate the lungs and induce more coughing.